Oracle® Solaris 11.2 Tunable Parameters Reference Manual

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Updated: December 2014


The utmpd daemon monitors /var/adm/utmpx (and /var/adm/utmp in earlier Solaris versions) to ensure that utmp entries inserted by non-root processes by pututxline(3C) are cleaned up on process termination.

Two entries in /etc/default/utmpd are supported:

  • SCAN_PERIOD – The number of seconds that utmpd sleeps between checks of /proc to see if monitored processes are still alive. The default is 300.

  • MAX_FDS – The maximum number of processes that utmpd attempts to monitor. The default value is 4096 and should never need to be changed.