SYSCTL.CONF(5) - File Formats Manual #

SYSCTL.CONF(5) - File Formats Manual

NAME #

sysctl.conf - sysctl variables to set at system startup

DESCRIPTION #

sysctl.conf contains a list of sysctl(8) variable assignments that is read at system startup by rc(8) early on in the boot sequence.

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

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.

OpenBSD 7.5 - February 10, 2020