# comment ; comment token = value
Note that blank lines are ignored, and whitespace before and after a token or value is ignored, although a value can contain whitespace within. Lines which begin with a # or ; are considered comments and ignored.
If a line begins with a single -, any attempts to set the value that fail will be ignored.
# sysctl.conf sample # kernel.domainname = example.com ; this one has a space which will be written to the sysctl! kernel.modprobe = /sbin/mod probe
The paths where sysctl preload files usually exist. See also sysctl option --system.