COBALT Qube™ 3 User Manual
©1998-2001 Cobalt Networks, Inc. All rights reserved. Part Number: Date: 070-00247-02 03-2001 The Cobalt logo, Cobalt Networks, Cube, Cobalt Qube, Qube, Cobalt RaQ, RaQ, Cobalt CacheRaQ, Cobalt NASRaQ, Cobalt StaQware and BlueLinQ are trademarks or registered trademarks of Cobalt Networks, Inc. Linux is a trademark of Linus Torvalds. The RSA software and the RSA logo are trademarks of RSA Data Security Inc.
Important Safeguards For your protection, please read all these instructions regarding your Cobalt Qube 3 and retain for future reference. 1. Read Instructions Read and understand all the safety and operating instructions before operating the appliance. 2. Ventilation The Cobalt Qube 3’s bottom vents and fan opening are provided for ventilation and reliable operation of the product, and to protect it from overheating. These openings must not be blocked or covered.
Important Safeguards 4. Power Cord ! Caution: The power-supply cord is used as the main disconnect device. Ensure that the socket outlet is located or installed near the equipment and is easily accessible. ! Attention : Le cordon d’alimentation sert d’interrupteur général. La prise de courant doit être située ou installée à proximité du matériel et offrir un accès facile. ! Achtung: Zur sicheren Trennung des Gerätes vom Netz ist der Netzstecker zu ziehen.
Regulations and Information This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Important Safeguards vi Cobalt Qube 3 User Manual
Preface This user manual is for anyone who will set up the Qube 3 network server appliance for a group of users. You should be familiar with Microsoft® Windows™, Macintosh® or other operating systems, and Netscape Navigator®, Microsoft® Internet Explorer or other Web browsers. This manual consists of the following chapters and appendices: Chapter 1 — “Introduction” on page 1 includes an overview of the Qube 3’s features.
Preface viii Cobalt Qube 3 User Manual
Contents Important Safeguards iii Preface vii List of Figures xix 1 Introduction 1 Qube 3 services Documentation Qube 3 hardware Qube 3 Server Desktop Administration screens Programs screen Personal Profile screen Qube 3 usage requirements Customer Service and Technical Support General Cobalt information Cobalt Technical Support and Service Email contact Technical Support telephone numbers Further resources and information Solutions that extend the functionality of the Qube 3 Cobalt Developer Networ
Contents 2 Setting up the Qube 3 Qube 3 setup Phase 1: Making the connection Connecting to the network Connecting the power supply Powering on the Qube 3 Configuring network settings Using the LCD console to configure the network Configuring the Qube 3 with a DHCP server on the network Configuring the Qube 3 with the auto-configuration feature 11 11 11 12 12 13 13 15 16 Configuring the Qube 3 manually Phase 2: Setting up with the Web browser Active Assist — Online Help Configuring the Qube 3 with the Set
Mailing lists Developing Web pages FrontPage 2000 Server Extensions Using an HTML editor CGI scripts PHP Publishing Web pages using FTP Sharing files and transferring data Using Windows file sharing (SMB) Before you begin: Windows 95 and Windows 98 users 42 43 43 44 44 45 45 46 46 46 Setting up Windows file sharing for Windows 95 and 98 Setting up Windows file sharing for Windows NT Using AppleShare Using AppleShare over IP Using FTP Dynamic Host Configuration Protocol (DHCP) server What is DHCP and what
Contents 4 Users Site 63 Overview of users site Help icon Logout icon Overview of WebMail WebMail messages Compose Adding an attachment to a message Folder List Viewing a folder Folder table Messages in a folder Moving a message Replying to a message Forwarding a message Deleting a message Manage Folders Adding a folder Modifying a folder Deleting a folder Mailing Lists Viewing an archive Replying to a message in the archive Address book Sorting the entries Users Viewing the users on the Qube 3 Viewing t
Personal Viewing the entries in the Personal Address Book Adding a personal contact Modifying a personal contact Sending an email to a personal contact Deleting a personal contact Personal profile Account Modifying account information Email Forwarding Vacation message Disk Usage Viewing the disk usage statistics Personal Information 5 Administration Site Administration site Accessing the Administration site Administration screen BlueLinQ screen Programs screen Personal Profile screen Other features Help ic
Contents xiv Users and Groups User List Configuring the default user settings Adding a user Modifying a user account Modifying a user’s email settings Adding an email alias for a user Deleting a user Group List Configuring the default group settings 104 104 106 107 109 111 112 113 113 114 Adding a group Modifying a group Deleting a group LDAP Directory Configuring your LDAP client LDAP Import File Import Email Services Mailing Lists Adding a mailing list Modifying a mailing list Deleting a mailing list
Network Services DNS server Dynamic Host Configuration Protocol (DHCP) server Basic Firewall Firewall Safeguard Applying changes Enabling the firewall feature Configuring the firewall settings Policy definitions Viewing a chain of rules 145 145 146 149 150 150 150 151 153 154 Changing the default policy for a chain Adding a firewall rule Modifying a firewall rule Changing the order of rules in a chain Deleting a firewall rule SNMP Telnet System TCP/IP Internet Configuration for a gateway on a LAN Configur
Contents Backup file locations Restore Restoring with the backup history Viewing details of a history item Deleting a history item Restoring a backup file manually Disaster recovery Usage information Web usage Disk usage 177 178 178 181 181 182 183 184 184 185 Network usage Active Monitor Active Monitor icon Active Monitor Status Active Monitor Settings BlueLinQ Software Notification icon New Software Updates Installed Software Settings 185 186 186 186 189 190 190 190 191 192 193 A Using the LCD Console
B Product Specifications 207 Hardware Software Features System management Physical data Regulatory approvals 207 208 208 208 209 209 C Upgrading the Qube 3 211 Components Memory Hard disk drives Precautions Opening the Qube 3 Adding components to the Qube 3 Closing the Qube 3 D Advanced Information High-speed serial port High-speed serial port as a serial console port Terminal settings Enabling the serial console port Directory structure Default home page for the Qube 3 User home page CGI scripts PHP
Contents Expire interval Time-to-live period (TTL) Configuring the server settings Forwarding server Zone transfer Zone file format Primary services Selecting a domain Selecting a network Modifying the SOA record 231 231 231 231 231 231 232 233 233 234 Deleting all DNS records Modifying a specific DNS record Deleting a specific DNS record Configuring a Forward Address (A) record Configuring a Reverse Address (PTR) record Configuring a Mail Server (MX) record Configuring an Alias (CNAME) record Secondary s
List of Figures Qube 3 rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Administration screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 BlueLinQ screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Programs screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Personal Profile screen . . . . . . . . . . . .
List of Figures Personal Profile screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 User List table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 Edit User Defaults table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 Add New User table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 Modify User Account Settings table . . . . . . . . . . .
Add Static Route table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165 Internet Settings for Gateway on a LAN table . . . . . . . . . . . . . . . . . . . . . . .166 Internet Settings for Cable Modem or DSL table . . . . . . . . . . . . . . . . . . . . .168 Internet Settings for Analog Modem or ISDN table . . . . . . . . . . . . . . . . . .170 Time Settings table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures xxii Cobalt Qube 3 User Manual
Chapter 1 Introduction The Cobalt Qube 3 is a powerful and versatile network server. It fits easily within an existing network, and it enhances workgroup activities by providing many communication and collaboration services. Qube 3 services Here is a sample of what you can do with the Cobalt Qube 3: • Web publishing. You can access a broad range of Web publishing capabilities for users and groups. • Email.
Chapter 1: Introduction Documentation You can access the user manual in PDF format from the browser-based user interface (UI), known as the Server Desktop. If you have installed third-party software on the Qube 3, the relevant documentation is available on this screen. To access the PDF file for the user manual, click on the help icon in the top right corner. A separate browser window opens displaying a list of PDF files in the languages available.
Qube 3 hardware 1. The PCI slot shield covers the PCI expansion slot of the Qube 3. This shield is removed when a PCI expansion card is plugged in. (See “Adding components to the Qube 3” on page 216.) 2. The SCSI connector provides an Ultra SCSI connection (optional). 3. On/Off power switch. 4. You can use the recessed Reset Password button if you forget the Qube 3 Administrator password. (See “Resetting the Qube 3 Administrator password” on page 103.) 5.
Chapter 1: Introduction Qube 3 Server Desktop You access the Qube 3 Server Desktop with a Web browser such as Internet Explorer or Netscape Communicator. The Qube 3 Server Desktop consists of the the Administration, BlueLinQ, Programs and Personal Profile screens. These are described in the following sections.
Qube 3 Server Desktop Figure 3. BlueLinQ screen Programs screen The Programs screen (Figure 4) is where you access the WebMail feature and manage the address book. The Programs screen is where Qube 3 users will spend most of their time when using the Qube 3. Figure 4.
Chapter 1: Introduction Personal Profile screen The Personal Profile screen (Figure 5) is where users access and configure the personal settings on the Qube 3. Figure 5. Personal Profile screen Qube 3 usage requirements To use the Qube 3, you need: • A 10/100BaseTX Transmission Control Protocol/Internet Protocol (TCP/IP) -based local area network (LAN). • A personal computer (attached to the network) that uses a Web browser (for example, Netscape Navigator, version 4.
Customer Service and Technical Support Customer Service and Technical Support For Cobalt product information, visit the support section of the Cobalt Web site at http://www.cobalt.com/support/. The site includes a Knowledge Base that customers can query; a list of Frequently Asked Questions (FAQs) that provide additional information is also available through the Knowledge Base. General Cobalt information In the U.S.A., call (888) 70-COBALT or (888) 702-6225, or send email to info@cobalt.com.
Chapter 1: Introduction Further resources and information Cobalt also offers the following additional resources and information. Solutions that extend the functionality of the Qube 3 For solutions that extend the functionality of the Qube 3, visit the Online Solutions Directory on Cobalt’s Web site at the following URL: http://www.cobalt.
Further resources and information The Knowledge Base Cobalt offers access to its online database of common installation and configuration problems and solutions. You can access the site at http:// www.cobalt.com/support/kb/. Online technical papers For customers looking for more in-depth technical information, there are a number of technical papers available on Cobalt Networks’ Web site at http://www.cobalt.com/support/.
Chapter 1: Introduction Before contacting Cobalt Networks Technical Support ✍ Note: To receive Technical Support, you must first register your Cobalt product. First, make an effort to resolve the problem on your own. Take note of all actions you perform and any error messages so that, if necessary, you can describe them to a member of the Technical Support team.
Chapter 2 Setting up the Qube 3 This chapter guides you through the process of connecting and configuring the Cobalt Qube 3 for your network and user community. A typical setup process takes less than 15 minutes, after which you can begin using all of the Qube 3 services. If the Qube 3 has been configured previously for a different network, refer to “Set up network” on page 196. Qube 3 setup The setup process occurs in two phases.
Chapter 2: Setting up the Qube 3 Figure 6. Network connectors Secondary network interface Primary network interface Serial port Power socket Connecting the power supply There are two parts to the power supply: the power supply unit and the country-specific AC power cord. Connect the power supply unit to the Qube 3 by pushing the connector into the multiple-source DC power socket; see Figure 6. Plug one end of the AC power cord into the power supply unit and the other end into an electrical outlet.
Phase 1: Making the connection Configuring network settings Now that you have made the network and power connections, you can configure the network settings. The Qube 3 requires specific network information in order to function properly. Depending on the network environment, the Qube 3 may be able to obtain all of the necessary information from a Dynamic Host Configuration Protocol (DHCP) server on the network. If so, the Qube 3 tries to configure itself with information from the DHCP server.
Chapter 2: Setting up the Qube 3 Figure 7. LCD console During startup, the LCD screen on the back of the Qube 3 displays status information about the boot process itself. When setting up the Qube 3, you use the LCD console to enter network configuration information. Once the Qube 3 is running, the LCD console is used to change network configuration information, reboot the unit and power down the unit. The arrow buttons function as follows: The Left arrow button moves the cursor to the left.
Phase 1: Making the connection Configuring the Qube 3 with a DHCP server on the network The Qube 3 first checks to see whether a DHCP server is present on the network. If there is a functioning DHCP server that is set up to serve leased IP addresses, the Qube 3 configures itself with the information received from the DHCP server. Once the boot process is completed, the top line of the LCD screen displays the fully qualified domain name of the Qube 3 and the bottom line displays the leased IP address.
Chapter 2: Setting up the Qube 3 Configuring the Qube 3 with the auto-configuration feature ! Caution: The auto-configuration feature on the Qube 3 launches a DHCP server on your network. If you already have a network set up, do not use the auto–configuration feature. If you do not have a network set up, Cobalt recommends the auto-configuration method over the manual method. The auto-configuration feature allows you to set up a network through the Qube 3.
Phase 1: Making the connection • If the Qube 3 auto-configures successfully, it acts as a DHCP server and assigns to the clients IP addresses in the range 10.6.18.30 through 10.6.18.249, a subnet mask of “255.255.255.0”, a primary DNS server address of “10.6.18.1” and a gateway or router address of “10.6.18.1”.
Chapter 2: Setting up the Qube 3 An IP address consists of four numbers, ranging from 0 to 255, separated by periods (for example, 192.168.25.77); this is often referred to as “dot-quad notation”. To enter the IP address for the Qube 3: 1. Use the arrow buttons on the LCD console to enter the IP address assigned to the Qube 3. 2. Press the button to accept the IP address. If the IP address is valid, the following prompt appears: PRIMARY NETMASK: 000.000.000.000 3. Enter the netmask of your network.
Phase 1: Making the connection 6. Press the button. The LCD displays: [S]AVE [C]ANCEL 7. To save the configuration information, use the left and right arrow buttons to select [S]ave, and then press the button. It pauses for a moment and then you will see: Setting up Network ✍ Note: Selecting [C]ancel cancels the configuration and the LCD screen displays PRIMARY IP ADDR: again. You must repeat the entry process. After verifying and saving, the Qube 3 completes the boot process.
Chapter 2: Setting up the Qube 3 Phase 2: Setting up with the Web browser The remainder of the setup process is performed through a Web browser on a computer on your network. Use one of the standard Web browsers such as Netscape Navigator (version 4.7 or later) or Microsoft Internet Explorer (version 5.0 or later) to do this. Once the setup process is complete, the Qube 3 can be managed from any computer on the network with a valid Web browser.
Phase 2: Setting up with the Web browser Active Assist — Online Help Active Assist provides real-time context-sensitive help on the Server Desktop. When you move the mouse pointer over a context-sensitive area of the screen, a description of the item appears at the bottom of the browser page. Configuring the Qube 3 with the Setup Wizard To configure the Qube 3, enter information into the fields on the Setup Wizard screens. These fields are described in the sections that follow.
Chapter 2: Setting up the Qube 3 Figure 8.
Phase 2: Setting up with the Web browser Language selection On the first screen of the Setup Wizard, you can select a different language for the Server Desktop UI. Select a language from the pull-down menu. ✍ Note: The language chosen in this step applies only to the user admin. When a new user accesses the Qube 3, the server synchronizes with the language preference configured in settings of the user’s Web browser and displays the Welcome screen in that language.
Chapter 2: Setting up the Qube 3 Figure 9.
Phase 2: Setting up with the Web browser Administrator Settings The Administrator Settings screen appears; see Figure 10. The Qube 3 Administrator is responsible for the following: • Setting up and maintaining the users, groups and services on the Qube 3 • Responding to email alerts from the Qube 3 in order to forestall potential problems Figure 10.
Chapter 2: Setting up the Qube 3 To set up the Qube 3 for the Administrator, you must enter a Password in this field. For guidelines on choosing a password, see “Password guidelines” on page 26. ✍ Note: We recommend that you reserve the email account admin for system messages and alerts only, and that you do not publicize this admin account. To send comments or suggestions to the Qube 3 Administrator, create instead an email alias such as sysadmin for that user.
Phase 2: Setting up with the Web browser Time Settings The Time Settings screen appears; see Figure 11. Using the pull-down menus, enter the current date, time and time zone on the Qube 3. Click the right arrow at the bottom to move to the next screen. Figure 11.
Chapter 2: Setting up the Qube 3 User Settings The User Settings screen appears as shown in Figure 12. On this screen, you can add users to the Qube 3 and allocate the user disk space limits. The Qube 3 Administrator can select how the Qube 3 generates the user name and set the default disk usage limits by clicking Edit User Defaults. Figure 12. User Settings The Qube 3 Administrator, with the user name admin, has full control of the Qube 3 and manages the services on the Qube 3.
Phase 2: Setting up with the Web browser Group Settings The Group Settings screen appears as shown in Figure 13. On this screen, the Qube 3 Administrator can create different groups of users. Each group has its own mailing list, Web site and file storage. Click Edit Group Defaults to configure the maximum allowed disk space that groups can use. ✍ Note: To add groups through the browser interface after the Qube 3 is set up, see “Adding a group” on page 115. You can modify the Groups on this screen.
Chapter 2: Setting up the Qube 3 Figure 13.
Phase 2: Setting up with the Web browser Network Integration Figure 14 shows the Network Integration screen; on this screen, you can do the following: • Assign a host name (for example, qube3) to the Qube 3. • Enter your domain name. The domain name is either the official domain name that is registered with an ICANN-accredited registrar (for example, “cobalt.com”) or an intranet domain name specific to your network.
Chapter 2: Setting up the Qube 3 Figure 14.
Phase 2: Setting up with the Web browser Product Registration The Product Registration screen appears; see Figure 15. If you are connected to the Internet, you can register the Qube 3 by completing the online registration. ✍ Note: If you are not yet connected to the Internet, you cannot register online. If you are not connected to the Internet, the Product Registration screen does not appear.
Chapter 2: Setting up the Qube 3 Figure 15.
Documentation Completing configuration with the Setup Wizard If you completed the Product Registration screen, click the right arrow at the bottom. Once the Qube 3 has been configured, the Administration site on the Server Desktop appears; see Figure 16. The buttons on the left side of Server Desktop provide access to the information and functions on this site. Move the mouse pointer over the menu buttons and a description of the Server Desktop features appears in the help text frame at the bottom.
Chapter 2: Setting up the Qube 3 36 Cobalt Qube 3 User Manual
Chapter 3 Qube 3 Services This chapter offers a brief overview of the services available on the Cobalt Qube 3. These services are described in detail in Chapter 4 and Chapter 5.
Chapter 3: Qube 3 Services Managing your personal profile Registered users on the Qube 3 can manage their own Personal Profile, including changing their password, using a standard Web browser such as Netscape Navigator (version 4.7 or later) or Microsoft Internet Explorer (version 5.0 or later). The features accessible from this screen are: • Account • Email • Disk Usage • Personal Information For more information, see “Personal profile” on page 89.
Using email on the Qube 3 Setting up your email client Ensure that the following information is entered into your email client on your personal computer. ✍ - 1. Note: If you check your mail through an external client (for example, Microsoft Outlook, Netscape Messenger or Qualcomm’s Eudora), you can enable an option to save a copy on the email server for a number of days. Email address. The format is either @domainname (see the note below) or @hostname.
Chapter 3: Qube 3 Services Email aliases Each registered user on the Qube 3 must have a unique user name (for example, mary or john.smith or khoward). This user name is used to send or retrieve email. The Email Alias feature allows you to create an arbitrary email address without creating a user account on the Qube 3. An email message addressed to the alias is forwarded to an existing email address. If you add more than one alias for a user, enter one alias per line.
Using email on the Qube 3 Email relaying Simple Mail Transfer Protocol (SMTP) service is different from Post Office Protocol (POP), telnet and file transfer protocol (FTP) services in that SMTP does not try to authenticate a user when an SMTP connection is made. Every email server on the Internet has to be able to deliver email to you, so the email servers must be able to connect freely to send the email.
Chapter 3: Qube 3 Services POP-before-SMTP feature The Qube 3 provides an option to allow POP authentication before SMTP. To enable this feature, see “Configuring the email settings” on page 131. Normally, you only permit email relaying from within your own network. But some users travel and connect from other places (for example, sales people or field engineers) and you want to let those users relay email through your server.
Developing Web pages Developing Web pages The Qube 3 automatically provides a default home page for each individual user and each group. It also supports a broad range of Web publishing capabilities that allow both novice and expert users to build and publish custom Web pages. ✍ - Note: To access your home page, enter the URL http:///~/, where is the fully qualified domain name of your Qube 3 and is your user name on the Qube 3.
Chapter 3: Qube 3 Services If you do not enter a password after you enable FrontPage Server Extensions and then try to save changes, the Server Desktop does not accept the changes. An error message appears at the bottom of the screen, informing you that you must enter a password for the webmaster account.
Publishing Web pages using FTP Use FTP to upload .cgi and .pl files; use ASCII mode to upload CGI files. Once the file is on the Qube 3, use your FTP program to make the script executable. You can also use the telnet command: chmod 775 .cgi The path to Perl is /usr/bin/perl/ To set the access rights specifying who is allowed to run CGI scripts, see “Web settings” on page 141. PHP The Qube 3 is pre-configured with support for embedded PHP scripts.
Chapter 3: Qube 3 Services Sharing files and transferring data You can access or connect to the Qube 3 through your desktop computer as you would any other shared network volume. The Qube 3 can be mounted from a Windows or Macintosh computer—it appears as a mounted volume on your desktop computer. The method of connecting to the Qube 3 varies, depending on your computer’s operating system. The Qube 3 offers several methods for transferring data.
Sharing files and transferring data Setting up Windows file sharing for Windows 95 and 98 1. If the user name is the same on both your computer and the Qube 3, go to Step 6 2. If the user name on your computer is different from the user name on the Qube 3, click the Start button in the bottom left corner of your screen. 3. Select Shut Down. The Shut Down Windows dialog appears. 4. Within the Shut Down Windows dialog, select “Close all programs and log on as a different user”. Click Yes.
Chapter 3: Qube 3 Services 8. Once the Qube 3 shows up in the Network Neighborhood list, double-click it to open it on your desktop computer. A password prompt appears. Enter the user name and password used on the Qube 3; the password is case-sensitive. 9. Click OK. 10. If you are using a workgroup name other than WORKGROUP, the Qube 3 may not appear in Network Neighborhood immediately. • To view your current workgroup name, click Start in the bottom left corner of the Windows screen.
Sharing files and transferring data 4. Click OK. 5. You may want to log in to the Qube 3 as a different user. If you see a password prompt in Step 3, you can do so. However, if your Windows NT account uses the same user name and password as the Qube 3, account, the password prompt in Step 3 will not appear. In this case, you must first exit your Windows NT session. • From the Start menu, select “Shut down the computer”. The Shut Down Windows NT dialog appears.
Chapter 3: Qube 3 Services Using AppleShare over IP The Qube 3 supports the use of AppleShare over IP, which means you can access your Qube 3 across an intranet or over the Internet. The Qube 3 shares its volume through AppleShare over IP by default. If you want to connect to a remote AppleShare volume over the Internet: 1. From the Apple menu in the top left corner, select Chooser. The Chooser dialog appears. 2. In the window on the left, select AppleShare. 3.
Dynamic Host Configuration Protocol (DHCP) server Dynamic Host Configuration Protocol (DHCP) server The Dynamic Host Configuration Protocol (DHCP) allows the Qube 3 to assign automatically the network configuration information (such as IP address, domain name, DNS service, subnet mask and gateway) to client computers that support DHCP, including Macintosh and Windows desktop computers.
Chapter 3: Qube 3 Services How does DHCP work? DHCP requires a client and a server. The following steps briefly describe how a DHCP server provides a client with its proper TCP/IP configuration: 1. When booted, a DHCP client broadcasts a request, known as a DHCP Discover, looking for a DHCP server to provide TCP/IP settings. DHCP clients are found in most TCP/IP software suites for PC, Macintosh and UNIX workstations. 2.
Domain Name System (DNS) 3. The DHCP client verifies the DHCP Offer it has received from the Qube 3 and sends back an acknowledgment (ACK) message to the Qube 3. 4. The Qube 3 responds to the client, reserves the IP address, acknowledges the client’s acceptance of the offer and delivers the configuration information. Domain Name System (DNS) The Domain Name System (DNS) is a vital and integral part of the Internet. Setting up DNS correctly on your Qube 3 is very important.
Chapter 3: Qube 3 Services IP Masquerading (NAT) ✍ Note: IP Masquerading is also known as Network Address Translation (NAT). The IP Masquerading feature simplifies and conserves IP addresses by presenting a single IP address for a private network to the public network. IP Masquerading enables private IP intranetworks that use non-registered IP addresses to connect to the Internet. IP Masquerading is both a security measure and a method of conserving IP addresses.
RAID-1 support For incoming packets, IP Masquerading does the opposite. IP Masquerading receives a packet from the Internet and translates the legal address of the secondary interface into the private IP address on the internal network. RAID-1 support RAID-1 is available on the Qube 3 Professional Edition only. A redundant array of independent disks (RAID) is a way of storing the same data in different places (thus, redundantly) on multiple hard disks.
Chapter 3: Qube 3 Services Hardware failure If one of the hard drives fails, the Qube 3 can function with one hard drive, but the server can no longer provide disk mirroring. To restore RAID service, you must shut down the Qube 3 and replace the failed hard drive. For more information on replacing a hard drive, see Appendix C, “Upgrading the Qube 3”. For a failed drive, Active Monitor indicates that the Drive A or Drive B has failed.
Basic Firewall Basic Firewall For more information on configuring the firewall, see “Basic Firewall” on page 149. For the definitions of the policies, see “Policy definitions” on page 153. A firewall provides network security through a set of rules that restrict the flow of information between your Qube 3 and your network. It is also used to control the information that your Qube 3 allows to pass between different networks (such as your company’s intranet and the public Internet.
Chapter 3: Qube 3 Services Rules and chains A packet-filtering rule consists of a set of criteria, and an action to take if a packet matches the criteria (this action is called the rule’s policy). Criteria for a rule can consist of items such as the machine from which the packet originated, the destination of the packet and the network interface through which the packet is moving. Typically, a rule’s policy accepts or rejects the packet; if rejected, the packet is discarded from the system.
Basic Firewall The lifecycle of a packet within the Qube 3 When a packet enters the Qube 3 server through a network interface, the firewall system applies the input chain against the packet before it is allowed to proceed any further into the system. If the input chain rejects or denies the packet, the Qube 3 discards the packet.
Chapter 3: Qube 3 Services Web Caching Web Caching is available on the Qube 3 Business Edition and Professional Edition only. The Qube 3 offers a caching feature. When the caching feature is enabled, the Qube 3 acts as a caching proxy server for Web clients. ✍ Note: The Web Caching feature on your Qube 3 relies on the Basic Firewall feature to operate. If you enable the Web Caching feature, the Basic Firewall feature is enabled automatically.
Support for Lightweight Directory Access Protocol (LDAP) Support for Lightweight Directory Access Protocol (LDAP) Lightweight Directory Access Protocol (LDAP) is a client-server protocol for accessing a directory service. The Qube 3 supports looking up user and group information through an LDAP client. For example, using a standard email client such as Netscape, Eudora or Outlook, you can use the address book feature of the email client to look up email addresses of users on the Qube 3.
Chapter 3: Qube 3 Services At the network level, the first time the browser connects to a server, the browser stores the server’s certificate. This is the encryption part of the secure connection. Each time the browser “thinks” that it is communicating with this same server, it verifies that this same certificate is used to assure the secure connection. At a higher level, a server’s certificate is “signed” by a trusted external authority that the browser knows about, such as VeriSign.
Chapter 4 Users Site This chapter describes the functions that Qube 3 users can perform with the Web browser interface which include the following: • WebMail • Address Book • Mailing Lists • Personal Profile ✍ Note: You cannot use accented characters (for example, ä, é, ñ) in the following items: • user names • group names • email addresses and email aliases • host names and domain names • the names of email folders in the WebMail program You can use accented characters.
Chapter 4: Users Site Overview of users site When a user other than the Administrator logs into the Qube 3, the Server Desktop consists of the Programs and Personal Profile screens which are selected with tabs at the top of the screen. The Programs screen is where Qube 3 users will spend most of their time when using the Qube 3; see Figure 17. Users access the WebMail feature and manage the address book on the Programs screen.
Overview of users site Figure 17. Programs screen Figure 18.
Chapter 4: Users Site Overview of WebMail ✍ Note: WebMail uses the IMAP email server. If the Qube 3 Administrator disables the IMAP server; users cannot access WebMail. The IMAP server is enabled by default. The Cobalt Qube 3 provides users with an integrated email client called WebMail.
WebMail messages To access WebMail: 1. From the Server Desktop, select Programs. The Programs screen appears, with a menu list on the left. 2. Click WebMail. A separate browser window opens for the WebMail program with one option at the top. 3. Under the tab Messages, you can: 4. • compose a message • view your folders • add or delete folders If you belong to a group or mailing list for which the Archive option has been enabled, a Mailing List menu item also appears in the menu list.
Chapter 4: Users Site c. BCC. This field is optional. Enter the email addresses of the recipients to whom you want to send a “blind” copy of the message. Separate multiple addresses with commas. The recipients entered in the To: and CC: fields do not see the recipients listed in the BCC: field; a recipient in the BCC: field does not see any of the other recipients in the BCC: field. ✍ 2. Note: You can also select recipients from your Address Book.
WebMail messages Adding an attachment to a message When you compose a new message, reply to a message or forward a message, you can attach a file to your message. ✍ Note: If you are using Internet Explorer on the Mac, you can only add one attachment to an email message. There is a single field with a browse button for locating the file. To add an attachment to a message: 1. Click the green “plus document” icon next to the Attachments field in the Compose Message table.
Chapter 4: Users Site Folder List You can review the messages in your folders. ✍ Note: To add or delete folders, see “Manage Folders” on page 75. There are two standard folders in WebMail. A user cannot delete these folders. • Inbox contains the incoming messages to your Qube 3 email account. • Sent-mail contains the outgoing messages from your Qube 3 email account. If you have created any other folders, they show up in this list as well. Viewing a folder To view a folder: 1.
WebMail messages Folder table In a folder table, the title bar displays the name of the folder. Figure 21 shows a sample of a folder table. Figure 21. Folder table In the second row, there is a Remove button for deleting messages and a “Move to...” pull-down menu for moving the messages between folders. The number of messages in the table is also shown. Above the table is a legend explaining the status icons: • A solid blue circle indicates that the message has not been read yet.
Chapter 4: Users Site • Subject. This column displays the subject of the message as a hypertext link. To view the message, click on this link. The browser window refreshes and the full message appears, with all the fields from the Compose section displayed (To, CC, Date, Subject, Message). If the message has an attached file, the file name appears as a hypertext link. • Recipient or Sender. Depending on which folder you are in, this column indicates who received the message or who sent the message.
WebMail messages Moving a message To move a message: 1. In the folder table, click the check box next to the message or messages that you want to move. 2. From the “Move to...” pull-down menu in the title bar, select the folder to which you want to move the message. The message moves as soon as you select the folder. 3. The folder table appears, minus the moved message. Replying to a message To reply to a message: 1. In a folder, click on the subject (a hypertext link) of the message.
Chapter 4: Users Site Forwarding a message To forward to a message: 1. In a folder, click on the subject (a hypertext link) of the message. The browser window refreshes and the full message appears, with all the fields displayed (To, CC, Date, Subject, Message). 2. Click Forward. The Forward table appears and you can fill in the fields. For an explanation of these fields, see “To compose a message:” on page 67. 3.
WebMail messages Manage Folders In the Manage Folder section, you can add or delete personal folders within your WebMail account. There are two standard folders in WebMail. A user cannot delete these folders. a. Inbox contains the incoming messages to your Qube 3 email account. b. Sent-mail contains the outgoing messages from your Qube 3 email account. You can add any number of folders. Folders added by a user can be deleted. Figure 22 shows a sample Folder List table. Figure 22.
Chapter 4: Users Site Adding a folder To add a folder: 1. Click Manage Folders on the left. The Folder List table appears with the two standard folders and any others you have created. The title bar indicates the number of folders in the table. 2. Click Add in the top row. The Add Folder table appears. 3. Enter the name of the folder in the Name field. 4. Click Save. The Folder List table refreshes with the new folder at the bottom of the list.
WebMail messages Mailing Lists When the Qube 3 Administrator creates a mailing list, he or she can enable the Archive option. The archive provides members of the mailing list access to all of the email messages addressed to the mailing list as well as the responses. By default, the Archive option is OFF. You can enable the Archive option when you create a new mailing list or you can modify an existing mailing list to enable the Archive option.
Chapter 4: Users Site Figure 23. Sample of a Mailing List Archive Figure 24.
WebMail messages Replying to a message in the archive To reply to a message in the archive: 1. Click Mailing Lists on the left. The lists for which there is an archive are shown under this menu item. The Mailing List Archive - table appears for the first mailing list in the sub-menu. Figure 23 shows a sample. 2. In the sub-menu, select the archive that you want to view. The archive table for that mailing list appears. 3.
Chapter 4: Users Site Address book The Address Book feature is closely integrated with WebMail. Using the Address Book, users can • view the registered users and groups on the Qube 3 • view personal contacts that you have added • send email messages to other registered users or groups on the Qube 3 or to personal contacts • view the Web pages of individual users or of groups. For more information on the WebMail program, see “Overview of WebMail” on page 66. To access the Address Book: 1.
Address book Users The Users section of the Address Book lists the registered users on the Qube 3. As the Qube 3 Administrator adds new users, the new users appear in the Address Book. For each user, you can view the user’s contact information, send an email to the user or view the user’s personal Web page. Viewing the users on the Qube 3 To view the registered users on the Qube 3: 1. Click Users in the sub-menu. The Users Address Book appears; see Figure 25.
Chapter 4: Users Site Figure 25. Users Address Book Sending an email to a user To send an email to the user: 1. Click Users in the sub-menu. The Users Address Book appears. 2. Click the yellow email icon next the user to whom you want to send an email. The Compose table appears. For more information on this table, see “Replying to a message” on page 73. 3. When you have completed the message, click Send. The Message Sent table appears. 4.
Address book Viewing a user’s Web page To view the user’s personal Web page: 1. Click Users in the sub-menu. The Users Address Book appears. 2. Click the globe icon next the user to whose personal Web page you want to view. A separate browser window opens to a default Web page for the user; see Figure 26. The user can replace this Web page. 3. Close the browser window to return to the Users Address Book. Figure 26.
Chapter 4: Users Site Groups The Groups section of the Address Book lists the registered groups on the Qube 3. As the Qube 3 Administrator adds new groups, the new groups appear in the Address Book. For each group, you can send an email to the group or view the group’s Web page. Viewing the groups on the Qube 3 To view the groups on the Qube 3: 1. Click Groups in the sub-menu. The Groups Listing table appears; see Figure 27. The table comprises four columns: • Name displays the name of the group.
Address book Sending an email to a group To send an email to a group: 1. Click Groups in the sub-menu. The Groups Listing table appears. 2. Click the yellow email icon next the group to whom you want to send an email. The Compose table appears. For more information on this table, see “Replying to a message” on page 73. 3. When you have completed the message, click Send. The Message Sent table appears. 4. Click Groups in the sub-menu to return to the Groups Listing table.
Chapter 4: Users Site Personal The Personal section of the Address Book contains contact information of a person that a user has added. You can enter a person’s name, email address, telephone and facsimile numbers, a URL for a Web page, mailing address and remarks. You must complete the field for the person’s name; all other fields are optional. ✍ Note: You do not have to enter an email address for a person; you can simply enter the contact information.
Address book Adding a personal contact To add a personal contact to the Personal Address Book: 1. Click Personal in the sub-menu. The Personal Address Book appears. 2. Click Add at the top of the table. The Add Contact table appears; see Figure 30. 3. Complete the following fields. 4. • Full Name. This field is mandatory. Enter the full name of the person. • Email Address. This field is optional. Enter an email address in the format . • Phone Number. This field is optional.
Chapter 4: Users Site Modifying a personal contact To modify a personal contact in the Personal Address Book: 1. Click Personal in the sub-menu. The Personal Address Book appears. 2. Click the green pencil icon next to the entry that you want to modify. The Modify Contact table appears. 3. Modify any of the following fields. 4. • Full Name. This field is mandatory. Enter the full name of the person. • Email Address. This field is optional. Enter an email address in the format .
Personal profile Deleting a personal contact To delete a personal contact from the Personal Address Book: 1. Click Personal in the sub-menu. The Personal Address Book appears. 2. Click the red trashcan icon next to the entry that you want to delete. A confirmation dialog verifies the deletion. 3. Click OK. The Personal Address Book table refreshes, minus the deleted entry. Personal profile The Personal Profile section allows you to view your user account information.
Chapter 4: Users Site Modifying account information To modify your account information: 1. Click Personal Profile at the top. 2. Click Account on the left. The Account Settings - table appears; see Figure 31. 3. Modify any of the following fields. a. Full Name. This field is mandatory. Modify the name for your account. b. Language Preference. You can select a language from the pull-down menu.
Personal profile Email There are two options available in the Email section: Email Forwarding and Vacation Message. Forwarding The Forwarding feature allows you to forward incoming messages to another email address. Enabling email forwarding To enable email forwarding: 1. Click Personal Profile at the top. 2. Click Email on the left. The Email Settings - table appears; see Figure 32. 3. In the Email Forwarding section of the table, click the check box Enable. 4.
Chapter 4: Users Site Vacation message The Vacation Message feature allows you to enter a vacation-reply message that is automatically sent to each person who sends you email. This feature is useful when you know that you will not be reading or responding to incoming email messages for a period of time. A vacation-reply email is sent only once a week to each sender. Enabling the vacation message To enable the vacation message: 1. Click Personal Profile at the top. 2. Click Email on the left.
Personal profile Disk Usage In the Disk Usage section, you can view the amount of disk space in use, the amount of disk available and the percentage of the disk in use. Viewing the disk usage statistics To view the Disk Usage statistics: 1. Click Personal Profile at the top. 2. Click Disk Usage on the left. The Disk Usage table appears with the usage statistics; see Figure 33. The table displays the amount of disk space used (MB), the amount of disk space free (MB) and the percentage of disk space used.
Chapter 4: Users Site Personal Information In the Personal Information section, you can enter and manage your personal contact information. 1. Click Personal Profile at the top. 2. Click Personal Information on the left. The Personal Information table appears. 3. Fill in the following fields (all of the fields are optional): 4. • Web page address • Telephone number • Fax number • Address • Remarks Click Save. Figure 34.
Chapter 5 Administration Site This chapter describes the administrative functions that only the Cobalt Qube 3 Administrator is allowed to perform. The Qube 3 Administrator, with the user name admin, has full control of the Qube 3.
Chapter 5: Administration Site ✍ Note: You cannot use accented characters (for example, ä, é, ñ) in the following items: • user names • group names • email addresses and email aliases • host names and domain names • the names of email folders in the WebMail program You can use accented characters.in descriptive fields, for example, in the Full Name field for a user or in the Remarks field describing a group.
Administration site 5. Click Login. If you enabled the Secure Connect option, your browser may prompt you to accept a self-signed certificate. This certificate is generated automatically for you and is required for SSL encryption. If you do not accept the certificate, you cannot use the Secure Connect option. ✍ Note: The Qube 3 generates a self-signed certificate during configuration.
Chapter 5: Administration Site Administration screen The following bullet items represent the fully expanded Administration menu on the left side of Administration screen. These are the functions and services that the Administrator can manage from the Administration screen. They are explained in this chapter.
Administration site • • • • System (see page 162) • TCP/IP • Internet • Power • Time • Information Maintenance (see page 175) • Backup • Restore Usage Information (see page 184) • Web • Disk • Network Active Monitor (see page 186) • Status • Settings Cobalt Qube 3 User Manual 99
Chapter 5: Administration Site BlueLinQ screen This screen provides tools for updating and installing the Qube 3 software. See “BlueLinQ” on page 190 for details on using these tools. Figure 36. BlueLinQ screen Programs screen The Programs screen (see Figure 37) is where the Administrator accesses and manages Web Mail and the Address Book. These are described in Chapter 4. Figure 37.
Administration site Personal Profile screen The Personal Profile screen (see Figure 38) is where the Administrator manages the Administrator Account, Email, Password, and disk usage settings. These are described in “Personal profile” on page 89. Figure 38.
Chapter 5: Administration Site Other features There are four icons in the top right corner of the Server Desktop: • Help • Software Notification • Active Monitor • Logout Help icon You can access the user manual in PDF format from the Server Desktop. If you have installed third-party software on the Qube 3, the relevant documentation is available on this screen. To access the PDF file for the user manual, click on the help icon in the top right corner.
Administration site Resetting the Qube 3 Administrator password When the Qube 3 Administrator password is cleared, the root account is not accessible until a new administrator password is assigned. Caution: After you clear the password, enter a new one as soon as possible to protect the security of the Qube 3.At this point, anyone on the network can assign the Qube 3 Administrator password until you assign a new one.
Chapter 5: Administration Site Users and Groups The Users and Groups section is where you administer user and group settings for all Qube 3 users including the Qube 3 Administrator. To access the Users and Groups section, select Administration in the top menu bar and Users and Groups in the left menu bar. The Users and Groups sub-menu items are as follows: • User List • Group List • LDAP Directory • Import These are described below.
Users and Groups Figure 39.
Chapter 5: Administration Site Configuring the default user settings To configure the default user settings: 1. Select Administration > Users and Groups > User List to open The User List table (see Figure 39). 2. Click Edit User Defaults. The User Defaults table appears as shown in the following figure. Figure 40. Edit User Defaults table 3. Configure the following default settings: • Maximum Allowed Disk Space (MB).
Users and Groups Adding a user To add a user: 1. Select Administration > Users and Groups > User List to open The User List table (see Figure 39). 2. Click Add. The Add New User table appears as shown in the following figure. Figure 41.
Chapter 5: Administration Site 3. Fill in the fields: • Full name. Enter the first and last names of the user, separated by a space (for example, Alan Williams). • User name. The user name is generated automatically from the user’s full name, according to the user name format specified in the default settings.
Users and Groups Modifying a user account To modify the information for a user’s account: 1. Select Administration > Users and Groups > User List. The User List table appears. 2. Click the green pencil icon next to the user whose account you want to modify. The Modify User table appears (see Figure 42). 3. Modify one or all of the following fields. You cannot modify the user name. • Full name. Enter the first and last names of the user, separated by a space (for example, Grace Ecklund Gustavson).
Chapter 5: Administration Site Figure 42.
Users and Groups Modifying a user’s email settings To modify a user’s email settings: 1. Select Administration > Users and Groups > User List. The User List table appears. 2. In the User List table, locate the user whose email settings you want to modify. 3. Click the green pencil icon next to that user’s name. The Modify User Settings - table appears (see Figure 43). 4. Click the Email tab in the upper right corner of the table. The email settings appear. Figure 43.
Chapter 5: Administration Site 5. Modify the following fields in the Modify User Settings table. • Email Aliases. (optional) There may already be an alias entered from when you first added the user. Enter additional names for which the user can receive email. To add more than one alias, enter each alias on a separate line or separate the aliases with spaces. For more information on email aliases, see “Email aliases” on page 40. • Email Forwarding.
Users and Groups Deleting a user To delete a user: Caution: You cannot undo this action. ! If you remove a user, you delete the user account and all of the associated files. 1. Select Administration > Users and Groups > User List. The User List table appears. 2. Click the red trash can icon next to the user that you want to delete. A confirmation dialog box verifies the deletion. 3. Click OK in the confirmation dialog box. The User List table updates with the deleted user removed from the table.
Chapter 5: Administration Site Figure 44. Group List table Configuring the default group settings To configure the default settings for a group: 1. Select Administration > Users and Groups > Group List. The Group List table appears. 2. Click the Edit Group Defaults button. The Edit Group Defaults table appears; see Figure 45. Figure 45. Edit Group Defaults table 3. Enter a whole number greater than zero (in MB) for the maximum amount of disk space available to a group for file storage and Web pages.
Users and Groups Adding a group To add a group: 1. Select Administration > Users and Groups > Group List. The Group List table appears. 2. Click Add. The Add New Group table appears; see Figure 46. Figure 46. Add New Group table 3. Fill in the fields: • Group name. Enter the name of the group. The name can be a maximum of 12 characters long; you can only use lowercase English letters, numbers, and the hyphen (-) and underscore (_) characters. • Maximum allowed disk space (MB).
Chapter 5: Administration Site Modifying a group To modify the members of a group or the maximum allowed disk space for the group: 1. Select Administration > Users and Groups > Group List. The Group List table appears. 2. Click the green pencil icon next to the group that you want to modify. The Modify Group Settings table appears; see Figure 47. Figure 47. Modify Group Settings table 3. Modify one or both of the following fields. • Maximum allowed disk space (MB).
Users and Groups Deleting a group To delete a group: Caution: You cannot undo this action. ! If you remove a group, you delete the group, all of the files in the group directory, the group directory itself, the associated mailing list for that group, and the Windows file sharing and AppleShare settings. 1. Select Administration > Users and Groups > Group List. The Group List table appears. 2. Click the red trash can icon next to the group that you want to delete.
Chapter 5: Administration Site 2. 3. Configure the settings in the LDAP Import table. • Enable. Click the check box to enable the Qube 3 as an LDAP server. • Base Distinctive Name. The base distinctive name (Dn) of your user directory. For example, o=My Organization, c=US. • Email Domain Name. (optional) This option allows you to alter the domain name of the email messages exported in your directory. If the name of this machine is mail.company.com, but receives mail for @company.
Users and Groups 5. Click to enable the check box “Log in with name and password”. You need to authenticate yourself as a user on the Qube 3 with: • @ • your password You can click to enable the check box “Save password” if you want. 6. You can leave the other settings as they are. 7. Click OK. Microsoft Outlook Express on Windows To configure your Microsoft Outlook LDAP client: 1. Open Microsoft Outlook. 2. Select Tools > Accounts.
Chapter 5: Administration Site 8. Click Next. 9. For Check Email Addresses, you can select Yes or No. Click Next. 10. For Friendly Name, enter an easy-to-remember name for the directory service. For example, enter Eric Braswell’s Directory. 11. Click Next. 12. Click Finish. You return to the Internet Accounts window. 13. Double-click on the account you just created. The Properties - General window for that account opens. This window displays the information you entered through the Wizard. 14.
Users and Groups 2. In the pull-down menu, select Lightweight Directory Access Protocol (LDAP) Import to open the following table. Figure 50. LDAP Import table 3. 4. Configure the settings in the LDAP Import table. • Server Network Address. The IP or hostname of the server from which you wish to import. • Base Distinctive Name (Dn). The base of the LDAP entries to import. • Binding Distinctive Name (Dn). This is the binding distinctive name (Dn) of the admin user on the LDAP server.
Chapter 5: Administration Site File Import The Import feature allows you to upload a tab-delimited file containing user information to the Qube 3, saving you the time and effort of adding a large list of users individually through the Add New User function.
Email Services Email Services This section describes how the Qube 3 administrator configures the Qube 3 email settings. For additional information about setting up your email client to access email on the Qube 3, see “Using email on the Qube 3” on page 38. In addition, Chapter 4, “Users Site,” on page 63 describes how to use Web Mail. Mailing Lists In the Mailing Lists section, you can create and manage mailing lists. A mailing list can receive email from an address that is external to the Qube 3.
Chapter 5: Administration Site 2. Click Add. The Add Mailing List table appears in the Basic section; see Figure 53. Figure 53. Add Mailing List - Basic table 3. Enter a name for the mailing list in the List Name field. You can only use lowercase English letters, numbers, and the hyphen (-) and underscore (_) characters. There is no limit on the number of characters in the name. 4. Add local subscribers to the mailing list.
Email Services Figure 54. Add Mailing List - Advanced table 8. Fill in the fields. • Owner/Moderator. Enter a properly formatted email address or the user name of the Qube 3 user performing all the administrative duties for the mailing list. For example, user@cobalt.com is a valid entry. The default value is admin. • Password. This password is used when performing certain list administration tasks through email, such as approving subscriptions or moderating messages.
Chapter 5: Administration Site • Subscription Policy. Use the pull-down menu to select a policy for subscribing to the mailing list. • Open: any user may subscribe. Anyone with an email address can subscribe herself or himself to the mailing list; that person is automatically subscribed. This is not restricted to registered Qube 3 users. • Confirm: Email confirmation is required for subscription.
Email Services Modifying a mailing list To modify a mailing list: 1. Select Administration > Email Services > Mailing Lists. The Mailing Lists table appears. 2. Click the green pencil icon next to the group whose mailing list you want to modify. 3. The Modify Mailing List table appears. There are basic and advanced tables. Except for the screen titles, these tables are contain the same fields as the Add New Mailing List tables. See Figure 55 and Figure 56.
Chapter 5: Administration Site Figure 56. Modify Mailing List - Advanced table Deleting a mailing list To delete a mailing list: 1. Select Administration > Email Services > Mailing Lists. The Mailing Lists table appears. 2. Click the red trash can icon next to the mailing list that you want to delete. Aconfirmation dialog box verifies the deletion. ✍ - 3. Note: A mailing list with a dimmed trash can is a mailing list created as part of a group on the Qube 3.
Email Services Email server overview The Qube 3 supports email for entire domains such as www.mydomain.com. By default, each registered user has an email account created on the Qube 3. The Qube 3 supports multiple client and server email protocols but does not implement virtual email users. This means that for the entire Qube 3, each user must have a unique username. The Qube 3 can act as a Simple Mail Transfer Protocol (SMTP) server for sending and receiving Internet email.
Chapter 5: Administration Site Enabling the email server By default, all three options are enabled. To enable or disable an email server: 1. Select Administration > Email Services > Email Servers. The Email Settings table opens in Basic mode; see Figure 57. 2. Use the check boxes to enable or disable the following email servers. 3. • SMTP. The Simple Mail Transfer Protocol server • IMAP. The Internet Message Access Protocol server • POP. The Post Office Protocol server Click Save. Figure 57.
Email Services Configuring the email settings To configure the Email settings: 1. Select Administration > Email Services > Email Servers. The Email Settings table opens in the Basic mode. 2. Click Advanced to enter the Advanced mode; see Figure 58. Figure 58.
Chapter 5: Administration Site 3. Fill in the fields in the Advanced Email Settings table. • Delivery Schedule. This setting specifies how frequently email is delivered by the email server on the Qube 3. The Qube 3 queues the messages, sending them at the specified frequency. If you connect to the Internet through a dedicated phone line or by ethernet (through the secondary network interface), then you can choose to have your email delivered and retrieved more often.
Email Services • Relay Email from Hosts/Domains/IP Addresses. Enter the IP addresses, host names, or domain names that are allowed to relay email through this Cobalt Qube 3 server. For more information, see “Email relaying” on page 41. A user cannot send outgoing email through this server unless the IP address, host name or domain name of the machine from which they they are connecting is entered in this field. Networks may be specified in addition to IP addresses.
Chapter 5: Administration Site If you want to allow connections from a host that ends, for example, in mydomain.com, add the string mydomain.com in the text area. ✍ • Note: If you entering a domain name or part of a domain name in the text box, you must have reverse DNS working on your clients. Receive Email Addressed to Hosts/Domains. In this field, enter the IP addresses or domain names for which you receive email. Email addressed to the of the Qube 3 is automatically accepted.
Email Services Remote Retrieval (Multidrop) ISPs often arrange for all messages to an organization to be retrieved from a single mailbox. This mailbox is usually referred to as a “multidrop mailbox” because it contains email messages addressed to more than one person. Your ISP must configure your multidrop mailbox at the ISP to accept all email for your domain. The domain of the Qube 3 must match the domain of the email that is to be collected.
Chapter 5: Administration Site 2. Configure the fields in the Remote Retrieval table. • Enable Remote Retrieval. Click the check box to enable remote retrieval. • Remote Email Server. Enter the network address or fully qualified domain name of the remote email server from which to retrieve your entire domain's email messages. Enter a properly formatted network address or fully qualified domain name for the Remote Email Server. For example, 192.168.1.100 and mail.cobalt.com are valid entries.
File Services File Services See “Sharing files and transferring data” on page 46 for further information on Qube 3 file sharing. This section describes how to setup the Qube 3 file sharing settings. ✍ Note: Windows File Sharing (SMB), FTP and Appleshare are enabled by default; guest share is not enabled by default. Windows file sharing (SMB) Windows-based machines use a file-sharing protocol called Server Message Block (SMB) or Windows file sharing.
Chapter 5: Administration Site 2. 3. 138 Configure the following settings: • Enable Server. Check this box to enable Windows File Sharing. • Maximum Simultaneous Users. The default value is 25 users but you can change this value. • Workgroup. Enter a workgroup or NT domain to which you want the Qube 3 to belong. This entry determines how the Qube 3 appears in the Network Neighborhood on a Windows client machine. • Windows 95/98 Network Login Authentication.
File Services FTP As the Qube 3 Administrator, you can enable the File Transfer Protocol (FTP) server and specify the number of simultaneous users. ✍ Note: To enable anonymous FTP access, see “Guest Share” on page 140. To set the FTP settings for your Qube 3: 1. Select Administration > File Services > FTP. The File Transfer Protocol (FTP) Settings table appears; Figure 62. Figure 62. File Transfer Protocol (FTP) Settings table 2. Click the Enable Server check box. 3.
Chapter 5: Administration Site Apple file sharing (AppleShare) AppleShare is the Macintosh file-sharing protocol. This option allows you to share files between the Qube 3 and Macintosh computers on your network. In the Qube 3, AppleShare works over IP networks, which makes Macintosh-to-Qube 3 file sharing faster (even on your internal network). To enable Apple file sharing: 1. Select Administration > File Services > Apple. The Apple File Sharing Settings table appears; see Figure 63. Figure 63.
Web Services Figure 64. Guest Share Settings table Web Services Web settings To set the Web settings: 1. Select Administration > Web Services > Web. The Web Settings table appears; see Figure 65. 2. To enable the FrontPage Extensions, click the Enable check box and enter a webmaster password. Figure 65.
Chapter 5: Administration Site 3. Specify the CGI access settings. • Do not allow access to any user. Only the Qube 3 Administrator is allowed to run CGI scripts. • Allow access to all users. All users are allowed to run CGI scripts. • Allow access to specified users only. You can specify the users who are allowed to run CGI scripts. If you select this option, click on the user names to transfer between the Users Allowed Access and Users Not Allowed Access windows.
Web Services 3. (optional) Enter the host name(s) or domain name(s) to which you want to apply the policy chosen in the pull-down menu. Blanket domain names may be used by including a leading period character before a domain name. For example, if you enter “www.sun.com”, the restriction policy applies to this host only. However, if you enter “.sun.com”, the policy applies to “www.sun.com”, “cobalt.sun.com” and all other Web sites sharing the “sun.com” domain. 4.
Chapter 5: Administration Site Web Caching Web Caching is available on the Qube 3 Professional Edition and Business Edition only. The Qube 3 offers a caching feature. When the caching feature is enabled, all Web traffic (http://) routed through the Qube 3 is cached; the Qube 3 acts as a caching proxy server for Web clients. This is known as “transparent caching”.
Network Services Network Services In the Network section, you can enter the network configuration settings for the Qube 3. The network settings make the Qube 3 visible to other computers. ☞ Important: Coordinate any changes to the network configuration information with your Internet service provider (ISP) to ensure the integrity of your network. If your Qube 3 is integrated into a larger network, consult with your network administrator for this information.
Chapter 5: Administration Site Dynamic Host Configuration Protocol (DHCP) server ! Caution: If a DHCP server is already present on your network, do not configure the Qube 3 to act as a DHCP server. The Dynamic Host Configuration Protocol (DHCP) feature allows the Qube 3 to assign automatically the network configuration information to network devices that support DHCP, including Macintosh and Windows desktop computers.
Network Services 2. Specify the settings in the DHCP Settings table: • Enable Server. This check box enables or disables the feature of DHCP server. If you enable this feature, the Qube 3 automatically provides the network configuration information to a client machine when you power up the client machine. • Client Domain Name. Enter the domain name that the Qube 3 will automatically serve to these clients. This domain name is usually the same as the domain name of your Qube 3.
Chapter 5: Administration Site 4. Click Add for the Dynamic Address Assignments List to open the table shown Figure 69. Figure 69. Add New Dynamic Address Assignment table 5. Specify the following settings: • IP Address Range (From). Enter the first or lowest IP address in the range of IP addresses to be dynamically assigned by this server. Enter a series of four numbers between 0 and 255 separated by periods. For example, 192.168.1.100 is a valid entry. • IP Address Range (To).
Network Services Basic Firewall ! Caution: Basic Firewall is an advanced feature of your Qube 3 server. This feature is not recommended for novice users. A firewall provides network security through a set of rules that restrict the flow of information between your Qube 3 and your network. It is also used to control the information that your Qube 3 allows to pass between different networks (such as your company’s intranet and the public Internet.
Chapter 5: Administration Site Firewall Safeguard When enabling your firewall for the first time or applying changes to the configuration of the firewall currently functioning, the Qube 3 verifies that the Web browser that the Qube 3 Administrator is currently using is still able to communicate with the Qube 3 after the firewall settings have been applied.
Network Services Configuring the firewall settings To configure the Basic Firewall settings: 1. Select Administration > Network Services > Basic Firewall. The Firewall Settings table appears. 2. The Firewall Settings table consists of three more sections that you access with the Select Section pull-down menu. These are shown in Figure 72, Figure 73 and Figure 74. The rule tables list the IP filtering rules for the firewall currently functioning. You can perform the following actions in the Rules tables: 3.
Chapter 5: Administration Site Figure 72. Firewall Input Rules Figure 73. Firewall Forwarding Rules Figure 74.
Network Services Policy definitions In the Add and Modify Firewall Rule tables, the Qube 3 Administrator selects an action in the Policy pull-down menu. The policy determines the action taken if a packet matches the rule’s criteria. The following policies are supported: • ACCEPT accepts the packet into the system. The packet “passes” the rule chain and no further rules within this chain are applied. • DENY discards the packet.
Chapter 5: Administration Site Viewing a chain of rules To view a chain of rules: 1. Select Administration > Network Services > Basic Firewall. The Firewall Settings table appears; see Figure 75. 2. From the Select Section pull-down menu, select Input Rule Chain, Forward Rule Chain or Output Rule Chain. The rules table for that chain appears, displaying the list of rules currently configured for that rule chain. Figure 75.
Network Services Adding a firewall rule To add a firewall rule: 1. Select Administration > Network Services > Basic Firewall. The Firewall Settings table appears. 2. From the Select Section pull-down menu, select Input Rule Chain, Forward Rule Chain or Output Rule Chain. The rules table for that chain appears. 3. Click Add. The Add New Firewall Rule table appears; see Figure 76. Figure 76. Add New Firewall Rule table 4. Configure the following settings: • Source IP Address (Low).
Chapter 5: Administration Site • Source Port Number(s). Enter the first and last source port number in the range of source IP addresses to be matched by this rule. To match any source port number, leave the Source Port Number fields empty. • Destination IP Address (Low). Enter the first or lowest destination IP address in the range of IP addresses to be matched by this rule. • Destination IP Address (High).
Network Services 3. Click the green pencil icon next to the rule you want to modify. The Edit Firewall Rule table appears; see Figure 77. ✍ Note: Rules in the Input Chain table that display a greyed-out pencil and trash can are related to the Web Caching feature. You cannot modify or delete these rules. Figure 77. Edit Firewall Rule table 4. 5. Modify one or all of the following fields. For a description of each field, see the procedure in “Adding a firewall rule” on page 155.
Chapter 5: Administration Site Changing the order of rules in a chain To re-order the firewall rules in a chain: 1. Select Administration > Network Services > Basic Firewall. The Firewall Settings table appears. 2. From the Select Section pull-down menu, select Input Rule Chain, Forward Rule Chain, or Output Rule Chain. The rules table for that chain appears. The first column in the table displays the order in which the system applies the firewall rules. Number 1 is the top-priority rule.
Network Services Deleting a firewall rule To delete a firewall rule: 1. Select Administration > Network Services > Basic Firewall. The Firewall Settings table appears. 2. From the Select Section pull-down menu, select Input Rule Chain, Forward Rule Chain, or Output Rule Chain. The rules table for that chain appears. 3. Click the red trash can icon next to the rule you want to delete. A confirmation dialog verifies the deletion. 4. Click OK.
Chapter 5: Administration Site SNMP You can specify the Simple Network Management Protocol (SNMP) communities that can have read-only and read-and-write access to this SNMP agent. The default read-only access community is “public.” The default read-and-write access community is “private.” ✍ Note: We recommend that you change the default string for the Read and Write SNMP Community to a unique value. To specify the SNMP communities: 1. Select Administration > Network Services > SNMP.
Network Services Telnet ! ! Caution: You can adversely affect the performance of your Qube 3 if you modify system configuration files. Check your warranty card for details. Caution: Only advanced users who need to run shell scripts or use shell commands should access the Qube 3 through the telnet function. An advanced user is someone who is proficient in using the Unix operating system. Direct root logins are not allowed on the Qube 3.
Chapter 5: Administration Site 2. Select one of the following telnet access options to specify who has telnet access to the Qube 3. ✍ - 3. Note: The second and third options pose security risks; however, they allow the user to configure options supported by the Linux operating system that cannot be configured through the Web-based Server Desktop interface. • Off - Do Not Allow Logins. No telnet access is available. This is the most secure option for the Qube 3. • On - Allow Only Administrator Logins.
System Figure 80. TCP/IP Settings table 2. Configure the following fields as appropriate for your situation. • Host Name. Enter the host name of this Qube 3. The host name and the domain name combined together should uniquely identify this server. Enter only lowercase alphanumeric characters, dashes or periods. For example, www is a valid entry. • Domain Name. Enter the domain name of this Qube 3. The host name and the domain name combined together should uniquely identify this server.
Chapter 5: Administration Site 3. • IP Address (Primary Interface). Enter the IP address of the primary interface. If you are using only one network interface connection to the server appliance, use the primary interface and leave the secondary interface empty. Enter a series of four numbers between 0 and 255 separated by periods. For example, 192.168.1.1 is a valid entry. • IP Network Mask (Primary Interface). Enter the network mask of the primary interface.
System 4. Click Add. The Add Static Route table appears; see Figure 82. Figure 82. Add Static Route table 5. 6. Configure the Add Static Routes table fields: • Target Subnet. Enter the IP address of the subnet to be re-routed. Enter a series of four numbers between 0 and 255 separated by periods. For example, 192.168.1.0 is a valid entry. • Target Network Mask. Enter the network mask of the subnet to be rerouted. Enter a series of four numbers between 0 and 255 separated by periods. For example, 255.
Chapter 5: Administration Site Configuration for a gateway on a LAN Complete this section only if you intend to connect the Qube 3 to the Internet through an existing gateway located on a local area network (LAN). This gateway may be connected to the outside world through a T1/E1 line or other type of leased line. You need a network connection and the IP address for the gateway. ✍ Note: Depending on your network configuration, the gateway can be on the primary or the secondary network interface.
System 3. Configure the following settings: • Server Gateway. Enter the IP address of your local network gateway. A network gateway allows you to connect to the world outside of your LAN. Enter a series of four numbers between 0 and 255 separated by periods. For example, 192.168.1.254 is a valid entry. Leaving this field empty prevents this machine from communicating with other networks. • IP Forwarding and Masquerading. Select the method of forwarding packets through the server appliance.
Chapter 5: Administration Site Configuration for cable modem or DSL Complete this section only if you intend to connect the Qube 3 to the Internet with a cable modem or digital subscriber line (DSL) modem. You need a cable modem or DSL modem, and an account with an ISP. Ensure that you connect the modem to the secondary network interface on the back of the Qube 3; see Figure 6 on page 12. To configure the Qube 3 Internet settings for a cable modem or for DSL service: 1.
System 3. This table presents three options: • Obtain Automatically Using DHCP. There are two fields: Client Host Name and Client Identifier. Depending on your ISP, they provide you with the information to enter in these fields or the fields do not need to be filled in. • Obtain Automatically Using PPPoE. If your ISP uses PPPoE and provides you with a user name and password, enter them here. Enter your password twice for confirmation. • Specify Manually.
Chapter 5: Administration Site To configure the Qube 3 Internet settings for an analog modem or for ISDN: 1. Select Administration > System > Internet to open the Internet Settings table. 2. If it does not open in the desired mode, click on the Change Internet Connection pull-down menu and select Analog Modem or ISDN. The Analog Modem or ISDN table appears; see Figure 85. Figure 85. Internet Settings for Analog Modem or ISDN table 3. 170 Configure the following settings: • Connection Status.
System • Connection Period. You can select certain hours of the day during which the modem cannot connect to the Internet. By default, the modem is allowed to dial out at any time of the day. In the scrolling window Connect Times, click on a particular hour or hours, and then click the green arrow to move that time period into the scrolling window Do Not Connect. The hours are displayed according to a 24-hour clock. For example, the period “00:00 - 00:59” represents 12:00 a.m. to 12:59 a.m.
Chapter 5: Administration Site Power (Reboot) Rebooting the Qube 3 sometimes cures problems with certain services. The Active Monitor software recommends when a reboot is necessary. For security reasons, you cannot power down the Qube 3 through the Desktop Server; you have to power down the server through the LCD console. This screen lists the steps for powering down. For more information, see “Power down” on page 203.
System Time To specify the time, date, and time zone settings for the Qube 3: 1. Select Administration > System > Time. The Time Settings table opens; see Figure 86. 2. Use the pull-down menus to set the time, date, and time zone. 3. You may optionally enter the host name or IP address of a Network Time Protocol (NTP) server if you want the Qube 3 to automatically synchronize its internal clock every night. You can find a list of publicly available NTP servers at: http://www.eecis.udel.
Chapter 5: Administration Site Information To view information about your Qube 3, select Administration > System > Information The System Information table appears; see Figure 87.
Maintenance Maintenance The Maintenance menu provides access to utilities for backing up and restoring the Qube 3 system. Backup You can perform both scheduled backups and manual backups on the Qube 3. Creating a backup To create a backup of the data on the Qube 3: 1. Select Administration > Maintenance > Backup. The Scheduled Backup List table appears. 2. Click Add. The Add Scheduled Backup table appears; see Figure 88. 3. Complete the fields in the table. • Backup Name.
Chapter 5: Administration Site • Click Cancel to discard any changes you have made. • Click Save to schedule the backup as specified. The Scheduled Backup List table refreshes with the new job displayed; see Figure 89. If you selected Backup Immediately, the backup job begins and proceeds in the background. Administering the Qube 3 while a backup is running is not recommended. ✍ Note: Do not interrupt or cancel the backup job. If the backup job fails, delete the partial backup file from your computer.
Maintenance Viewing details of a scheduled backup To view the details for a scheduled backup job: 1. Select Administration > Maintenance > Backup. The Scheduled Backup List table appears. 2. Click the green magnifying glass icon next to the backup that you want to view. The Scheduled Backup Details table appears, showing the details about the backup job. 3. Click Back to return to the Scheduled Backup List table. 4. Click Remove to permanently delete this backup job.
Chapter 5: Administration Site NFS server For a backup by NFS Server: • specify a location only • a location is in the form server:/dir1/dir2 • a password is not required SMB server For a backup by SMB Server (Windows File Sharing): • specify a location (fileserver and directory), user name and password • a location is in the form \\server\share\dir1\dir2 All scheduled backups For All Scheduled backups, ensure that the target location is available and has enough disk space to hold the backup archiv
Maintenance If you have not cleansed your system with the Cobalt OS Restore CD or you have restored your history file, the history of all executed backups is available in the Backup File List table in the Maintenance > Restore screen. To restore the data set with the backup history: 1. Select Administration > Maintenance > Restore. The Backup File List table appears; see Figure 90.
Chapter 5: Administration Site 3. From the Location to Restore Files pull-down menu, choose a location for the restored files: restore to “restore” fileshare or replace existing files. Replacing existing files overwrites files on your hard drive if there is a file with the same name and location as the file being restored. This option should only be used for disaster recovery, as it irreversibly alters the state of the system.
Maintenance Viewing details of a history item To view the details for a history item: 1. Select Administration > Maintenance > Restore. The Backup File List table appears. 2. Click the green magnifying glass icon next to the history file that you want to view. The History Item Details table appears, showing the details about the history file. 3. Click Back to return to the Backup File List table. 4. Click Restore to restore the files.
Chapter 5: Administration Site Restoring a backup file manually To restore a data set manually, you must make the desired data set available to the Qube 3 either by mounting the network share or by transferring the files to the Qube 3. 1. Mount the network share or transfer the data set to the Qube 3. 2. Select Administration > Maintenance > Restore. The Backup File List table appears. 3. Click Restore Manually above the table. The Manual Restore From Directory table appears; see Figure 92. Figure 92.
Maintenance 6. Click Cancel to discard any changes you have made or click Restore to restore the files. The restore job begins and proceeds in the background. Administering the Qube 3 while a restore is underway is not recommended. ! Caution: Interrupting a restore can corrupt your data. If the restore process is interrupted, the Qube 3 Administrator can try to restore again. Disaster recovery To restore your Qube 3 to a known state after a disaster: 1.
Chapter 5: Administration Site Usage information Web usage To view statistics about your Qube 3 Web server: 1. Select Administration > Usage Information > Web. The Web Server Statistics table appears; see Figure 93. 2. Use the pull-down menu to select one of the following views: 3.
Usage information Disk usage To view information about the current state of your Qube 3 disk: 1. Select Administration > Usage Information > Disk. The Disk Usage table appears; see Figure 94. 2. Use the pull-down menu to select one of the following views: 3. • Summary • Users • Groups You can click the Check Usage Now button to update disk usage information immediately. This may take as long as several minutes, and proceeds in the background. Figure 94.
Chapter 5: Administration Site Active Monitor The Qube 3 uses Active Monitor software, a Cobalt Networks utility that runs on a Qube 3 and updates key system and service status every 15 minutes. This section describes how to use the Active Monitor. Active Monitor icon The Active Monitor icon in the top right corner of the Server Desktop allows you to view status information. The icon turns red if any of the components monitored by Active Monitor have severe problems.
Active Monitor Figure 96.
Chapter 5: Administration Site 3. To view detailed status information for a particular system component or service, click the colored circle to the left of the item’s name in the table or click the magnifying glass in the Action column that corresponds to the name of the item. See Figure 97. The status of each of the above items is indicated by a green, yellow, red or grey circle beside each item. The colors have the following significance: • Grey.
Active Monitor Active Monitor Settings To configure the Active Monitor settings: 1. Select Administration > Active Monitor > Settings. The Active Monitor Settings table appears; see Figure 98. 2. Configure the settings in the Active Monitor Settings table. • Enable Monitoring. This check box enables or disables Active Monitor. Enabling this feature allows the system components to be regularly checked for proper operation. • Alert Notification Emails.
Chapter 5: Administration Site BlueLinQ When you log into the Qube 3 as admin, the BlueLinQ tab appears in the top menu bar of the Qube 3 interface. When you select BlueLinQ, the left menu bar presents commands that allow you to update the Qube 3 software, add new software and view the installed software. This section describes how to use these commands.
BlueLinQ Updates 1. Select BlueLinQ > Updates. The Available Software Updates List table appears; see Figure 100. Figure 100. Available Software Updates List table 2. Click Check Availability Now to update the list of available software or click Install Manually if you already know the location of new software that you want to install on the Qube 3. 3. Click the green magnifying glass icon to see more detailed information about the software package. The Install Software table appears; see Figure 101.
Chapter 5: Administration Site 4. Click Install Manually. The Install Manually table appears; see Figure 102. Figure 102. Install Manually table 5. Enter a URL in the URL field or enter a path and filename to load the software package from you computer. You can also click Browse to locate the software package. 6. Click Prepare. The system verifies that the file you are loading is in the correct .pkg format. The system then begins to load the software.
BlueLinQ Settings To view or modify the settings for the BlueLinQ feature: 1. Select BlueLinQ > Settings. The BlueLinQ Settings table appears; see Figure 104 for the Basic settings and Figure 105 for the Advanced settings. The active tab shows up as a light grey. Figure 104. BlueLinQ Settings - Basic table Figure 105.
Chapter 5: Administration Site 2. Configure the fields in the BlueLinQ Settings tables. • Query Schedule. Specify how frequently the BlueLinQ server is checked for new or updated software packages. • Software Notification Light. Specify the type of new software that activates the Software Notification Light, and if applicable, the type of new software that appears in notification email messages. • Notification Emails.
Appendix A Using the LCD Console During startup, the LCD screen on the back of the Cobalt Qube 3 displays status information about the boot process itself. When setting up the Qube 3, you use the LCD console to enter network configuration information for the Qube 3. Once the Qube 3 is running, the LCD console serves several purposes.
Appendix A: Using the LCD Console Set up network To reset the IP address or change the network configuration of the primary network interface: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the 3. Enter the IP address of the primary network interface using the arrow buttons. The left and right arrow buttons move the cursor position to the left or right.
Advanced network Advanced network There are six further options under the Advanced Network option: • review settings • set up primary • DHCP primary • set up secondary • DHCP secondary • Exit Review settings To review the network settings on the Qube 3: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the screen: button until ADVANCED NETWORK appears in the LCD SELECT: ADVANCED NETWORK 3.
Appendix A: Using the LCD Console Set up primary To set up the primary network interface on the Qube 3: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the screen: button until ADVANCED NETWORK appears in the LCD SELECT: ADVANCED NETWORK 3. Press the button. The LCD screen displays: SELECT: REVIEW SETTINGS 4. Press the button until SETUP PRIMARY appears in the LCD screen: SELECT: SETUP PRIMARY 5.
Advanced network DHCP primary To configure the primary network interface on the Qube 3 using a DHCP server: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the screen: button until ADVANCED NETWORK appears in the LCD SELECT: ADVANCED NETWORK 3. Press the button. The LCD screen displays: SELECT: REVIEW SETTINGS 4. Press the button until DHCP PRIMARY appears in the LCD screen: SELECT: DHCP PRIMARY 5.
Appendix A: Using the LCD Console Set up secondary To configure the secondary network interface on the Qube 3: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the screen: button until ADVANCED NETWORK appears in the LCD SELECT: ADVANCED NETWORK 3. Press the button. The LCD screen displays: SELECT: REVIEW SETTINGS 4. Press the screen: button until SETUP SECONDARY appears in the LCD SELECT: SETUP SECONDARY 5.
Advanced network DHCP secondary To configure the secondary network interface on the Qube 3 using a DHCP server: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the screen: button until ADVANCED NETWORK appears in the LCD SELECT: ADVANCED NETWORK 3. Press the button. The LCD screen displays: SELECT: REVIEW SETTINGS 4. Press the screen: button until DHCP SECONDARY appears in the LCD SELECT: DHCP SECONDARY 5.
Appendix A: Using the LCD Console Reboot To reboot the Qube 3 through the LCD console: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the button until REBOOT appears in the LCD screen: SELECT: REBOOT 3. Press the button. 4. Use the arrow buttons to toggle the cursor between [Y] and [N]. Select [Y] to reboot the system. 5. Press the button. You can also reboot the Qube 3 through the Web browser: 1.
Power down Power down Caution: To prevent the potential loss of data, it is important to follow the proper power-down procedure before turning off the Qube 3. ! To power down the Qube 3: 1. On the LCD console, hold down the seconds. The LCD screen displays: button for approximately two SELECT: SETUP NETWORK 2. Press the button until POWER DOWN appears in the LCD screen: SELECT: POWER DOWN 3. Press the button. 4. Use the arrow buttons to toggle the cursor between [Y] and [N].
Appendix A: Using the LCD Console Reset network This function is useful if you are moving the Qube 3 to a new network. The Reset Network function resets the IP address and netmask for the primary and secondary network interfaces to that of a new, unconfigured Qube 3. It also resets the gateway, host name, domain name and DNS information to that of a new, unconfigured Qube 3. Resetting the network also disables the IP firewall filtering rules, if you had enabled that option.
Reset filters and static routes To re-enable the filtering rules through the Server Desktop: 1. On the Server Desktop, select Administration > Network Services > Basic Firewall. The Firewall Settings table appears. 2. Click the check box Enable Firewall. 3. Click Save. Reset filters and static routes The Reset Filters function turns off the IP firewall filtering rules and provides the option to reset static routes, meaning that the static routes are deleted. To reset the filtering rules: 1.
Appendix A: Using the LCD Console The LCD screen returns to the normal display with the fully qualified domain name on the top line and the IP address on the bottom line. To re-enable the filtering rules through the Server Desktop: 1. On the Server Desktop, select Administration > Network Services > Basic Firewall. The Firewall Settings table appears. 2. Click the check box to Enable Firewall. 3. Click Save. To re-enter the static routes through the Server Desktop, see “TCP/IP” on page 162.
Appendix B Product Specifications Hardware The Qube 3 has the following hardware components. See http://www.cobalt.com for the most up-to-date information on the hardware specifications. The Qube 3 has the following hardware components. • x86-compatible superscalar processor • 512 KB of L2 cache • 32-MB to 128-MB PC-100 SDRAM DIMMs (2 slots); can support up to 512 MB (3.
Appendix B: Product Specifications Software The Qube 3 has the following software features. Features • Linux 2.2 multitasking operating system • Apache 1.3 Web server, HTTP /1.1 compliant • Common gateway interface (CGI) support • PHP 4 support • Perl scripting • FrontPage98 and FrontPage 2000 Server Extensions 3.
Physical data Physical data The Qube 3 has the following physical characteristics. • Dimensions: 7.5 in. x 7.63 in. x 7.75 in. (19.1 cm x 19.2 cm x 19.7 cm) • Weight with one hard drive: 8.3 lbs. (3.9 kg) • Weight with two hard drives: 9.5 lbs. (4.3 kg) • Power requirements: Input rating 100-240 V, 50/60 Hz • Power consumption: 45 watts • Power requirement for the PCI slot: • • 5V @ 1A • +12V @ 0.5A • -12V @ 0.
Appendix B: Product Specifications 210 Cobalt Qube 3 User Manual
Appendix C Upgrading the Qube 3 Components Your Qube 3 comes equipped with two Dual Inline Memory Module (DIMM) slots, one of which is used for existing memory, one available PCI slot, and one or two hard disk drives. You can add components to enhance your Qube 3. The Qube 3 automatically detects a new DIMM, PCI card or hard disk drive. Before you purchase a component to add to the Qube 3, ensure that the component is of the right type and that it will fit in the allocated space.
Appendix C: Upgrading the Qube 3 Hard disk drives The Qube 3 and Qube 3 Business Edition ship with one hard drive disk; the Qube 3 Professional Edition ships with two hard disk drives and offers RAID-1 disk mirroring. If you have a Qube 3 Professional Edition and one of the hard drive fails, the failed hard disk drive (Drive A or Drive B) is indicated in the Server Desktop under the Active Monitor function.
Precautions Figure 106.
Appendix C: Upgrading the Qube 3 Figure 107.
Precautions Figure 108.
Appendix C: Upgrading the Qube 3 Opening the Qube 3 ! Caution: You MUST power down the Qube 3 before opening the unit. To open the Qube 3: 1. Power down the Qube 3. See “Power down” on page 203. 2. Unplug the Qube 3. 3. Remove the power cord from the rear panel of the Qube 3. The power connector is located at the bottom right corner. See Figure 1 on page 2. To remove the cord, simply hold the Qube 3 in place and gently pull the connector out. 4.
Adding components to the Qube 3 3. Unscrew the thumbscrews that hold the drive(s) in place. See Figure 106, #3. ☞ Important: If your Qube 3 has two hard disk drives, make careful note of which drive is installed in Slot A and which is installed in Slot B of the drive bay. 4. Slide the drive(s) out of the drive bay. 5. Remove the four screws that attach the drive bay to the system chassis. 6. Carefully lift the drive bay out of the chassis. 7.
Appendix C: Upgrading the Qube 3 Adding a PCI expansion card 1. With the CPU riser board out of the system chassis, remove the screw holding the PCI slot cover in place and remove the PCI slot cover. See Figure 1 on page 2. 2. Install the PCI card into the PCI slot on the I/O board. Match the PCI card alignment marks with the alignment guides on the slot. See Figure 107. 3. Fasten the PCI card in place with the screw that was holding the PCI slot cover.
Adding components to the Qube 3 Replacing a hard disk drive 1. If you are simply replacing the drive(s) that you removed in order to remove the CPU riser board, re-install the drive(s) in the drive bay. If you are re-installing a single drive, it goes in slot A. If you are re-installing two drives, install the correct drive in slot B first, and then the other drive in slot A second. ☞ 2.
Appendix C: Upgrading the Qube 3 Closing the Qube 3 To close the Qube 3, perform the steps for opening the Qube 3 in reverse order. 1. Carefully replace the sheet metal top cover, locating the tabs to the back of the Qube 3. See Figure 106, #2. 2. Carefully replace the blue plastic top cover, snapping all sides into place. See Figure 106, #1. 3. Re-attach the single screw which holds the blue plastic top cover to the system chassis. 4.
Appendix D Advanced Information High-speed serial port For information on using the high-speed serial port, see “Configuration for an analog modem or ISDN” on page 169. High-speed serial port as a serial console port You can use the high-speed serial port to establish a terminal connection to the Qube 3. To use the high-speed serial port as a serial console port, you must change the current state of the console function to on or off.
Appendix D: Advanced Information The first message indicates that the serial port can function as a serial console port. If this message is displayed, allow the bootup process to continue. The second message indicates that the serial port cannot function as a serial console port. If this message is displayed, allow the bootup process to continue. Repeat this bootup process so that the LCD screen displays the first message.
High-speed serial port as a serial console port Enabling the serial console port To use the high-speed serial port as a serial console port: ✍ ✍ Note: This procedure can require rebooting the Qube 3 twice. as there is no way to tell if the console function is enabled or disabled through the Server Desktop or LCD screen. Note: While the Qube 3 is in the CONSOLE ON mode, you cannot use an analog modem or an Integrated Services Digital Network (ISDN) terminal adapter. 1.
Appendix D: Advanced Information Directory structure The disk on the Qube 3 is partitioned into four segments. Most of the available disk space is on the partition mounted from /home/. It is recommended to do most of your work under this partition. By default, quotas are turned on in this partition and are used extensively by the system software.
Directory structure User home page When Qube 3 Administrator creates a user through the Server Desktop, the home directory for that user is created in: /home/users/username/ User must upload files for their Web pages to: /home/users/username/web/ Users can view their Web pages at: http:///users// or http:///~ / CGI scripts The Qube 3 supports common gateway interface (CGI) scripts, such as those written in Perl or C, as well as Unix shell scripts.
Appendix D: Advanced Information 226 Cobalt Qube 3 User Manual
Appendix E Domain Name System The Internet uses a distributed naming system called the Domain Name System (DNS). DNS allows us to refer to computers by host names as well as by Internet Protocol (IP) addresses. IP addresses are hard to remember and are inconvenient to use. DNS allows us to use host names and domain names which can resolved to IP addresses. DNS servers translate host names and domain names (for example, www.cobalt.com) to an associated IP address (for example, 192.168.10.10) and vice-versa.
Appendix E: Domain Name System There are also two buttons on the DNS screen, available in both the Basic and Advanced sections. These are explained later in this appendix. • Edit Primary Services. You can configure the primary DNS server. • Edit Secondary Services. You can configure the secondary DNS server. Basic DNS Enabling the DNS server feature To enable the DNS server on the Qube 3: 1. On the Server Desktop, select Administration > Network Services > DNS.
Advanced DNS Advanced DNS ☞ Important: Always click Save after modifying the settings in the Advanced section. If you do not, the changes will not take effect. Configuring SOA default values You can fine tune the primary domain and network authority settings—known as the Start of Authority (SOA) settings—independently of each other. To modify the SOA settings, see “Modifying the SOA record” on page 234. To configure the default values for the SOA settings: 1.
Appendix E: Domain Name System Figure 110. Advanced DNS table Domain administrator email address The email address defaults to the user name “admin” of the Qube 3. This email address is publicly available and is the administrative contact for the domain or network served. Refresh interval You can configure the refresh interval between updates from a secondary DNS server. • If DNS record changes occur infrequently, increase the default value.
Advanced DNS Retry interval Due to a connection or service failure, a secondary DNS server may be unable to refresh data from the primary server. The secondary DNS server attempts to refresh data after the interval specified for trying again. Expire interval A secondary DNS server may be unable to refresh data from the primary server for a prolonged period of time. After the interval specified for expiry, the secondary server stops serving name requests.
Appendix E: Domain Name System To configure the DNS server settings: 1. On the Server Desktop, select Administration > Network Services > DNS. The Domain Name System (DNS) Settings table appears. 2. Click Advanced on the right side of the table. The fields for the SOA default values and server settings appear. You can specify the forwarding DNS servers, the Zone Transfer Access by Domain and the Zone File Format. 3.
Primary services To set up the primary DNS server on the Qube 3, you need to configure the following DNS records. • Forward Address (A) record • Reverse Address (PTR) record • Mail Server (MX) server If there are no records defined, there are no authority selection options available. If there are records defined, two pull-down menus are available at the top of the screen: “Select Domain...” and “Select Network...
Appendix E: Domain Name System Modifying the SOA record You can modify the SOA record for a particular domain or network. For an explanation of the fields you can modify, see “Configuring SOA default values” on page 229. 1. From the pull-down menu, select the domain or network for which you want to modify the SOA record. The defined records for that domain or network appear in the Primary Service List table. 2. Click Modify SOA at the top of the Primary Service List table.
Primary services Deleting all DNS records You can delete all the DNS records for a particular network or domain name from the Primary Service List table. 1. From the pull-down menu, select the domain or network for which you want to modify the SOA record. The defined records for that domain or network appear in the Primary Service List table. 2. Click Remove Records at the top of the Primary Service List table.
Appendix E: Domain Name System Configuring a Forward Address (A) record A Forward Address (A) record translates a fully qualified domain name into an IP address. To configure a Forward Address (A) record for your Qube 3: 1. Select Administration > Network Services > DNS. The DNS Settings table appears. 2. Click Edit Primary Services above the table. The Primary Service List table appears. 3. Select Forward Address (A) Record from the Add Record... pull-down menu.
Primary services Configuring a Reverse Address (PTR) record A Reverse Address (PTR) record translates an IP address into a fully qualified domain name. To configure a Reverse Address (PTR) record for your Qube 3: 1. Select Administration > Network Services > DNS. The DNS Settings table appears. 2. Click Edit Primary Services above the table. The Primary Service List table appears. 3. Select Reverse Address (PTR) Record from the Add Record... pull-down menu.
Appendix E: Domain Name System Configuring a Mail Server (MX) record To receive mail for your domain name (for example, mydomain.com), you need to create a Mail Server (MX) Record. A Mail Server (MX) record identifies the mail server responsible for delivering email messages to a specified host name (optional) and domain name. An MX record is similar to an A record but resolves to a fully qualified domain name rather than an IP address.
Primary services Configuring an Alias (CNAME) record An Alias (CNAME) record provides the translation from one fully qualified domain name to another fully qualified domain name. The source domain name is known as the alias and the target domain name is known as the canonical name or real name. The target host name does not need to be a member of the local domain. For example, you can create an Alias (CNAME) record of “news.domain.com” resolving to “uucp.isp.net”.
Appendix E: Domain Name System Secondary services The Qube 3 Administrator can configure a secondary DNS server to provide redundant DNS service to your computers. If the primary DNS server is unavailable, the secondary DNS server takes over. Figure 112 shows some sample entries in the Secondary Service List table. Figure 112. Sample entries in the Secondary Service List table Secondary service for a domain To add a secondary name-server authority for a domain: 1.
Secondary services Figure 113. Add Secondary Domain table Secondary service for a network To add a secondary name-server authority for a network: 1. Select Administration > Network Services > DNS. The DNS Settings table appears. 2. Click Edit Secondary Services above the table. The Secondary Service List table appears. 3. Select Network Secondary Service from the Add Secondary Service... pull-down menu. The Add Secondary Service table appears; see Figure 114. 4.
Appendix E: Domain Name System Sample setup of DNS service This sample setup of DNS service on your Qube 3 assumes that you have already registered your domain with InterNIC or another registration service. If you have not, refer to the FAQ section on Cobalt’s web site (http://www.cobalt.com/support/ under the Knowledge Base link) for information on registering your domain name.
Sample setup of DNS service Reverse Address (PTR) record First, create a Reverse Address (PTR) record. 1. Select Administration > Network Services > DNS. The DNS Settings table appears. 2. Click Edit Primary Services above the table. The Primary Service List table appears. 3. Select Reverse Address (PTR) Record from the Add Record... pull-down menu. The Add New Reverse Address (PTR) Record table appears; see Figure 115. • In the IP Address field, enter 192.168.10.10. • Leave the subnet mask as 255.
Appendix E: Domain Name System Forward Address (A) record Next, create a Forward Address (A) record. 1. Select Administration > Network Services > DNS. The DNS Settings table appears. 2. Click Edit Primary Services above the table. The Primary Service List table appears. 3. Select Forward Address (A) Record from the Add Record... pull-down menu. The Add New Forward Address (A) Record table appears; see Figure 116. 4. • Leave the Host Name field blank. • In the Domain Name field, enter mydomain.
Sample setup of DNS service Mail Server (MX) record Finally, create a Mail Server (MX) record. 1. Select Administration > Network Services > DNS. The DNS Settings table appears. 2. Click Edit Primary Services above the table. The Primary Service List table appears. 3. Select Mail Server (MX) Record from the Add Record... pull-down menu. The Add New Mail Server (MX) Record table appears; see Figure 117. 4. • Leave the Host Name field blank. • In the Domain Name field, enter mydomain.com.
Appendix E: Domain Name System To add a new domain, use the Add Record... pull-down menu again. In the Domain Name field of the type of record you select, replace the default domain name with the new domain name that you want to create. For further information, refer to the following: • In the Cobalt Knowledge Base, search on “DNS”. • http://www.dnswiz.com/dnsworks.htm (not affiliated with Cobalt Networks) • http://www-europe.cisco.com/warp/public/787/indexDNS.
Brief history of the Domain Name System (DNS) What is a DNS record? People are much more comfortable dealing with names rather than strings of numbers. A domain name such as “cobalt.com” is much easier to remember than the IP address which consists of four octets of numbers such as 63.77.128.100. Domain names must be registered with Root Domain Registration Service; visit the Internet Corporation for Assigned Names and Numbers (ICANN) at http://www.icann.org for a list accredited domain-name registrars.
Appendix E: Domain Name System To determine which primary name server contains your domain name: 1. The local name server (the DNS resolver/browser machine) contacts the root domain name server maintained by the several Internet root server authorities. 2. The root domain name server returns the IP address of the primary name server responsible for the requested domain name. 3. The local name server contacts the primary name server. 4.
Appendix F Licenses The BSD Copyright Copyright ©1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2.
Appendix F: Licenses GNU General Public License Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License.
GNU General Public License 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a. You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b.
Appendix F: Licenses 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above, provided that you also do one of the following: a. Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b.
GNU General Public License 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License.
Appendix F: Licenses 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9.
GNU General Public License NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING, THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Appendix F: Licenses SSL License Copyright (c) 1998-1999 Ralf S. Engelschall. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2.
Appendix G Glossary 10/100 BaseTX An Ethernet connection over twisted-pair cables with a throughput of 10 Mb/s or 100 Mb/s. 10BaseT A 10-Mb/s baseband Ethernet specification using two pairs of twisted-pair cabling (Category 3, 4, or 5): one pair for transmitting data and the other for receiving data. 10BaseT (part of the IEEE 802.3 specification) has a distance limit of approximately 328 feet (100 meters) per segment.
Appendix G: Glossary Carrier sense multiple access with collision detection (CSMA/CD) A protocol that requires carrier sense and in which a transmitting data station that detects another signal while transmitting stops sending, sends a jam signal and then waits for a variable period of time before sending again. Used in ethernet LAN technology. CGI See Common gateway interface (CGI).
Digital Subscriber Line (DSL) A technology for bringing high-bandwidth information to homes and small businesses over ordinary copper telephone lines. The term xDSL refers to different variations of DSL, such as asymmetric DSL (ADSL), high-bit-rate DSL (HDSL) and rate-adaptive DSL (RADSL). If your home or small business is close enough to a telephone company central office that offers DSL service, you may be able to receive data at rates of up to 6.1 Mb/s.
Appendix G: Glossary Ethernet The most widely used technology for local area networks (LANs). Standard ethernet runs at 10 Mb/s, 100 Mb/s or 1000 Mb/s. It balances speed, price, ease of installation and availability. ETRN ETRN (Extended Turn) is an extension to the Simple Mail Transfer Protocol (SMTP) that allows an SMTP server to send a request to another SMTP server to send any email messages it has.
Gateway A network device that acts as an entrance to another network. A gateway can also be any device that passes packets from one network to another network across the Internet. HTML See HyperText Markup Language (HTML). HTTP See HyperText Transfer Protocol (HTTP). HyperText Markup Language (HTML) A set of “markup” symbols or tags inserted in a text file intended for display on a World Wide Web browser. The markup tags tell the Web browser how to display a Web page’s content, words, and images.
Appendix G: Glossary Integrated Services Digital Network (ISDN) A system of digital telephone connections. This system allows data to be transmitted simultaneously across the world using end-to-end digital connectivity. With ISDN, voice and data are carried by bearer channels (B channels) occupying a bandwidth of 64 Kb/s (some switches limit B channels to a capacity of 56 Kb/s). A data channel (D channel) handles signaling at 16 Kb/s or 64 Kb/s, depending on the type of service.
Internet Message Access Protocol (IMAP) Internet Message Access Protocol is a standard protocol for accessing email from your local server. IMAP is a client/server protocol in which email is received and held for you by your Internet server. You (or your email client) can view just the heading and the sender of the letter and then decide whether to download the mail from the server.
Appendix G: Glossary ISDN See Integrated Services Digital Network (ISDN). LAN See local area network (LAN). Leased IP address An IP address assigned by the Dynamic Host Configuration Protocol (DHCP) to an unrecognized computing device. This method involves setting up a leased pool of IP addresses that are allocated dynamically when new devices are booted and recognized on the network.
Name server A program that constitutes the server half of the DNS client-server mechanism. A name server contains information about a segment of the DNS database and makes it available to a client called a resolver. A resolver is often just a library routine that creates queries and sends them across a network to a name server. NAT See Network Address Translation (NAT). Netmask See subnet mask. Network Address Translation (NAT) A mechanism for reducing the need for globally unique IP addresses.
Appendix G: Glossary Peripheral Component Interconnect (PCI) Peripheral Component Interconnect (PCI) is an interconnection system between a microprocessor and attached devices in which expansion slots are spaced closely for high-speed operation. PCI is designed to be synchronized with the clock speed of the microprocessor, in the range of 20 MHz to 33 Mhz.
Post Office Protocol 3 (POP3) Post Office Protocol (POP) is a standard protocol for receiving email. POP is a client/server protocol in which email is received and held for you by your Internet server. When you read your mail, all of it is immediately downloaded to your computer and no longer maintained on the server. POP3 is built into the Netscape Navigator and Microsoft Internet Explorer browsers. POP can be thought of as a store-and-forward service.
Appendix G: Glossary Redundant Array of Independent Disks (RAID) A redundant array of independent disks is a way of storing the same data in different places (thus, redundantly) on multiple hard disks. A RAID appears to the operating system to be a single logical hard disk. There are a variety of different types and implementations of RAID, each with its own advantages and disadvantages. RAID Level 1 (RAID-1), also known as disk mirroring, consists of at least two drives that duplicate the storage of data.
These capabilities address fundamental concerns about communication over the Internet and other TCP/IP networks: • SSL server authentication allows a user to confirm the identity of a server. SSL-enabled client software can use standard techniques of public-key cryptography to check that a server’s certificate and public ID are valid and have been issued by a certificate authority (CA) listed in the client’s list of trusted CAs.
Appendix G: Glossary Simple Mail Transfer Protocol (SMTP) The TCP/IP standard protocol for transferring electronic mail messages between points on the Internet. SMTP specifies how two mail systems interact and the format of control messages they exchange to transfer mail. SMTP is a protocol for transferring email between points on the Internet; Post Office Protocol (POP) and Internet Message Access Protocol (IMAP) deal with receiving email from your local server.
Subnet mask A number that, in conjunction with an IP address, defines the set of IP addresses that are considered “local.” For example, if your IP address is 192.168.25.77 and your subnet mask is 255.255.255.0, then addresses between 192.168.25.1 and 192.168.25.255 are considered local. Also known as netmask. Swap file A space on a hard disk used as the virtual memory extension of a computer’s random access memory (RAM).
Appendix G: Glossary 272 Cobalt Qube 3 User Manual
