HP-UX System Administrator's Guide: Configuration Management

NOTE: HP strongly recommends that you use single-user mode when changing the
system clock. Therefore, warn users of a planned system shutdown. See the HP-UX
System Administrator’s Guide: Routine Tasks for details on system shutdown.
CAUTION: Changing the date while the system is running in multiuser mode may
disrupt user-scheduled and time-sensitive programs and processes. Changing the date
may cause make(1), cron(1M), and the Source Control subsystems SCCS (sccs(1)) and
RCS (rcs(1)) to behave in unexpected ways. Additionally, any HP or third-party supplied
programs that access the system time or the file time stamps stored in the file system,
may behave in unexpected ways after the date is changed. Setting the date backward is
not recommended. If changes were made to files in SCCS file format while the clock was
not set correctly, check the modified files with the val command. See val(1) for details.
See “Potential Problems When Changing the System Clock” (page 40) for more
information.
Setting System and Network Parameters
The /sbin/set_parms program is run automatically when you first boot the system
after installation. If you do not install HP-UX onto the system yourself, or you do not
provide networking information during the installation, you can add this information
later by running /sbin/set_parms initial. See set_parms(1M) for details.
You can reset networking parameters at any time by running /sbin/set_parms
again and rebooting the system. Any modifications should be made as soon as possible
after the initial installation.
To enter the appropriate set_parms dialog screen to manually add or modify
information after booting, log in as superuser and specify
# set_parms keyword
where keyword is one of the keywords in Table 2-1. You will be prompted for the
appropriate data. The list of keyword choices is displayed when you enter set_parms
without a keyword:
# set_parms
Usage: set_parms <argument>
Where <argument> can be:
hostname
timezone
date_time
root_passwd
ip_address
addl_netwrk
or initial (for entire initial boot-time dialog sequence)
Changes you make using set_parms will take effect after you reboot the system. See
the HP-UX System Administrator’s Guide: Routine Tasks.
Setting System and Network Parameters 41