SYSCTL.CONF(5)

NAME
sysctl.conf - sysctl variables to set at system startup

DESCRIPTION
sysctl.conf is made up of sysctl(8) variable assignments (variable=value) with comments designated by a hash mark (‘#’).

/etc/sysctl.conf is read at system startup by rc(8) early on in the boot sequence.

FILES
/etc/sysctl.conf
/etc/examples/sysctl.conf

EXAMPLES
To turn on IP forwarding, one would use the following line:

    net.inet.ip.forwarding=1

To cause the kernel to reboot on a panic, instead of dropping into the debugger, the following can be used:

    ddb.panic=0

SEE ALSO
sysctl(2), rc(8), sysctl(8)

HISTORY
A sysctl.conf file first appeared in OpenBSD 2.3.