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.

FILES

/etc/sysctl.conf

Initial settings for sysctl(8).

EXAMPLES

To disable coredumps, you may use a configuration like:

# Disable coredumps.
kern.coredump=0

SEE ALSO

sysctl(8)

HISTORY

The sysctl.conf file appeared in FreeBSD 4.0.

BUGS

If loadable kernel modules are used to introduce additional kernel functionality and sysctls to manage that functionality, sysctl.conf may be processed too early in the boot process to set those sysctls.