HP-UX Internet Services Administrator's Guide (May 2010)

Choosing a Name Service........................................................................................28
Editing the /etc/hosts File.........................................................................................29
Configuring a Route.................................................................................................29
Changing a Host’s IP Address.................................................................................31
Configuring inetd..........................................................................................................32
Editing the /etc/inetd.conf File.................................................................................32
Editing the /var/adm/inetd.sec File..........................................................................33
Configuring Logging.....................................................................................................34
Configuring syslogd................................................................................................34
Maintaining System Log Files..................................................................................35
Configuring inetd Connection Logging...................................................................35
Configuring ftpd Session Logging...........................................................................35
3 TCP Wrappers..........................................................................................................................37
Overview............................................................................................................................37
The tcpd Features...............................................................................................................37
Access Control...............................................................................................................38
Host Name/Address Spoofing......................................................................................39
Client User Name Lookup............................................................................................39
Trap Setting...................................................................................................................39
Banner Message.............................................................................................................39
TCP Wrappers Files............................................................................................................39
The tcpd Daemon..........................................................................................................40
Enabling tcpd...........................................................................................................40
The libwrap.a Library....................................................................................................41
The tcpdchk Tool...........................................................................................................42
The tcpdmatch Tool.......................................................................................................42
The try-from Utility.......................................................................................................43
The safe_finger Program...............................................................................................43
IPv6 Support.......................................................................................................................44
Troubleshooting..................................................................................................................44
4 Configuring NTP......................................................................................................................45
Getting Started with NTP...................................................................................................45
NTP Equipment.............................................................................................................46
Starting NTP Configuration.....................................................................................46
Choosing the Source of Time........................................................................................46
Available Time Sources............................................................................................47
Public Time Server...................................................................................................47
Local Clock Impersonators......................................................................................47
Radio Receiver.........................................................................................................48
Setting up an HP58503A GPS Receiver..............................................................48
Setting up a Trimble Palisade GPS Receiver.......................................................48
6 Table of Contents