HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, December 2009)

94 Configuring standard security features
Example:
ipfilter --save block_telnet_v4
5. Activate the new ipfilter policy by issuing the following command:
ipfilter --activate <policyname>
where policyname is the name of the policy you created in step 2.
Example:
ipfilter --activate block_telnet_v4
Unblocking Telnet
To unblock Telnet:
1. Connect to the switch through a means other than Telnet (for example, SSH) and log in as admin.
2. Issue in the following command:
ipfilter –delete <telnet_policyname>
where telnet_policyname is the name of the Telnet policy.
3. To permanently delete the policy, issue the following command:
ipfilter --save
For more information on IP Filter policies, see ”Configuring advanced security features” on page 107.
Configuring for the SSL protocol
Secure sockets layer (SSL) protocol provides a secure sockets layer (SSL) protocol, which provides secure
access to a fabric through Web-based management tools like Web Tools. SSL support is a standard Fabric
OS feature.
Switches configured for SSL grant access to management tools through hypertext transfer protocol-secure
links (which begin with https://) instead of standard links (which begin with http://).
SSL uses Public Key Infrastructure (PKI) encryption to protect data transferred over SSL connections. PKI is
based on digital certificates obtained from an Internet Certificate Authority (CA), which acts as the trusted
key agent.
Certificates are based on the switch IP address or fully qualified domain name (FQDN), depending on the
issuing CA. If you change a switch IP address or FQDN after activating an associated certificate, you may
have to obtain and install a new certificate. Check with the CA to verify this possibility, and plan these
types of changes accordingly.
Browser and Java support
Fabric OS supports the following Web browsers for SSL connections:
• Internet Explorer (Microsoft Windows)
• Mozilla (Solaris and Red Hat Linux)
In countries that allow the use of 128-bit encryption, you should use the latest version of your browser. For
example, Internet Explorer 6.0 and later supports 128-bit encryption by default. You can display the
encryption support (called “cipher strength”) using the Internet Explorer Help:About menu option. If you are
running an earlier version of Internet Explorer, you may be able to download an encryption patch from the
Microsoft website at http://www.microsoft.com
.
You should upgrade to the Java 1.5.0_06 Plug-in on your management workstation. To find the Java
version that is currently running, open the Java console and look at the first line of the window.
For more details on levels of browser and Java support, see the Web Tools Administrator’s Guide.