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.
If a line begins with a single -, any attempts to set the value that
fail will be ignored.
NOTES
As the /etc/sysctl.conf file is used to override default kernel parame-
ter values, only a small number of parameters is predefined in the
file. Use /sbin/sysctl -a or follow sysctl(8) to list all possible pa-
rameters. 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.
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
/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.
SEE ALSO
sysctl(8)
AUTHOR
]8;;staikos@0wned.org\George Staikos]8;;\
REPORTING BUGS
Please send bug reports to ]8;;procps@freelists.org\procps@freelists.org]8;;\
procps-ng 2021-09-15 SYSCTL.CONF(5)
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