SYSCTL.CONF(5)

NAME

     sysctl.conf -- kernel state defaults

DESCRIPTION

     The /etc/sysctl.conf file is read in when the system goes into multi-user
     mode to set default settings for the kernel.  The /etc/sysctl.conf is in
     the format of the sysctl(8) command, i.e.

	   sysctl_mib=value

     Comments are denoted by a ``#'' at the beginning of a line.  Comments can
     also exist at the end of a line, as seen in the EXAMPLES section, below.

FILES

     /etc/sysctl.conf  Initial settings for sysctl(8).

EXAMPLES

     To turn off logging of programs that exit due to fatal signals you may
     use a configuration like

	   # Configure logging.
	   kern.logsigexit=0	   # Do not log fatal signal exits (e.g. sig 11)

SEE ALSO

     rc.conf(5), rc(8), sysctl(8)

HISTORY

     The sysctl.conf file appeared in FreeBSD 4.0.

BUGS

     If loadable kernel modules are used to introduce additional kernel func-
     tionality and sysctls to manage that functionality, sysctl.conf may be
     processed too early in the boot process to set those sysctls.  For exam-
     ple, sysctls to manage the linux emulator cannot be set in sysctl.conf if
     the linux emulator is loaded as a module rather than compiled into the
     kernel.