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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  ig-
       nored,  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  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
       /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
       George Staikos <staikos AT 0wned.org>

REPORTING BUGS
       Please send bug reports to <procps AT freelists.org>

procps-ng                                   2020-06-04                             SYSCTL.CONF(5)

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