sysctl.conf - sysctl preload/configuration file
sysctl.conf is a simple file containing sysctl values to be read in and
set by
sysctl. The syntax is simply as follows:
# 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.
As the
/etc/sysctl.conf file is used to override default kernel parameter
values, only a small number of parameters is predefined in the file. Use
/sbin/sysctl -a or follow
sysctl(8) to list all possible
parameters. The description of individual parameters can be found in the
kernel documentation.
Maximum supported line length of the value is 4096 characters due to a
limitation of
/proc entries in Linux kernel.
# sysctl.conf sample
#
kernel.domainname = example.com
; this one has a space which will be written to the sysctl!
kernel.modprobe = /sbin/mod probe
/etc/sysctl.d/*.conf
/run/sysctl.d/*.conf
/usr/local/lib/sysctl.d/*.conf
/usr/lib/sysctl.d/*.conf
/lib/sysctl.d/*.conf
/etc/sysctl.conf
The paths where
sysctl preload files usually exist. See also
sysctl option
--system.
sysctl(8)
George Staikos
Please send bug reports to
[email protected]