SYSCTL.CONF(5) File Formats SYSCTL.CONF(5)
NAME
sysctl.conf - sysctl preload/configuration file
DESCRIPTION
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.
NOTES
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.
EXAMPLE
# sysctl.conf sample
#
kernel.domainname = example.com
; this one has a space which will be written to the sysctl!
kernel.modprobe = /sbin/mod probe
FILES
/run/sysctl.d/*.conf
/etc/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 --sys-
tem.
SEE ALSO
sysctl(8)
AUTHOR
George Staikos <staikos AT 0wned.org>
REPORTING BUGS
Please send bug reports to <procps AT freelists.org>
procps-ng January 2012 SYSCTL.CONF(5)
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