HP-UX Reference (11i v2 03/08) - 1M System Administration Commands N-Z (vol 4)

u
utmpd(1M) utmpd(1M)
NAME
utmpd - user accounting database daemon
SYNOPSIS
/usr/sbin/utmpd
DESCRIPTION
utmpd, user accounting database daemon, manages the user accounting database which is the database
of currently logged-in users. This was previously maintained by
/etc/utmp and /etc/utmpx files on
HP-UX.
Upon startup,
utmpd writes its pid to the file
/etc/useracct/utmpd_pid
. Applications can add,
update, or query entries into the database using the
getuts() APIs. See the getuts(3C) manual page
for more information.
utmpd(1M) takes care of synchronizing the legacy
/etc/utmpx file and its own in-memory database.
The synchronization is bi-directional from the
utmpd’s database to the /etc/utmpx and from the
/etc/utmpx file to utmpd’s database. However, this synchronization does not happen in real time.
There is a time lag which could span from a few seconds on a lightly loaded system to a few minutes on a
heavily loaded system.
Signal Processing
SIGTERM Perform graceful shutdown.
This causes the daemon to write its in-memory user accounting database to the
/etc/utmps file and exit.
DIAGNOSTICS
utmpd logs error messages to the system log using syslog(3C).
WARNINGS
If
utmpd is shutdown using SIGTERM, synchronization between
/etc/utmpx file and the
/etc/utmps file does not take place. utmpd should not be shutdown by the user unless it is for debug-
ging purpose. On restart, utmpd(1M) rebuilds its database from the /etc/utmps file.
AUTHOR
utmpd was developed by Hewlett-Packard Company.
FILES
/etc/utmps
/etc/useracct/utmpd_read
/etc/useracct/utmpd_write
/etc/useracct/utmpd_pid
/sbin/init.d/utmpd
/etc/rc.config.d/utmpd
SEE ALSO
rlogind(1), telnetd(1), who(1), init(1M), bwtmps(3C), getuts(3C), getutx(3C), btmps(4), utmp(4), utmpx(4),
wtmps(4).
Section 1M−−832 Hewlett-Packard Company − 1 − HP-UX 11i Version 2: August 2003