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 (‘#’).

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

A sysctl.conf file first appeared in OpenBSD 2.3.