HP-UX Internet Services Administrator's Guide (February 2007)

Choosing a Name Service............................................................................................27
Editing the /etc/hosts File.............................................................................................28
Configuring a Route....................................................................................................29
Changing a Host’s IP Address......................................................................................30
Configuring inetd.............................................................................................................31
Editing the /etc/inetd.conf File......................................................................................32
Editing the /var/adm/inetd.sec File...............................................................................32
Configuring Logging........................................................................................................33
Configuring syslogd....................................................................................................33
Maintaining System Log Files......................................................................................34
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...................................................................................................44
IPv6 Support.........................................................................................................................44
Troubleshooting.....................................................................................................................44
4 Configuring NTP......................................................................................................................47
Getting Started with NTP.......................................................................................................47
NTP Equipment...............................................................................................................48
Starting NTP Configuration.........................................................................................48
Choosing the Source of Time.............................................................................................48
Available Time Sources................................................................................................49
Public Time Server......................................................................................................49
Local Clock Impersonators...........................................................................................49
Radio Receiver............................................................................................................50
Setting up an HP58503A GPS Receiver....................................................................50
Setting up a Trimble Palisade GPS Receiver.............................................................50
4 Table of Contents