sysctl.conf(5)

1SYSCTL.CONF(5)                   File Formats                   SYSCTL.CONF(5)
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NAME

6       sysctl.conf - sysctl preload/configuration file
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DESCRIPTION

9       sysctl.conf is a simple file containing sysctl values to be read in and
10       set by sysctl.  The syntax is simply as follows:
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12              # comment
13              ; comment
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15              token = value
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17       Note that blank lines are ignored, and whitespace before  and  after  a
18       token  or  value  is  ignored,  although a value can contain whitespace
19       within.  Lines which begin with a # or ; are  considered  comments  and
20       ignored.
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22       If  a  line  begins with a single -, any attempts to set the value that
23       fail will be ignored.
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NOTES

27       As the /etc/sysctl.conf file is used to override default kernel parame‐
28       ter  values,  only  a  small  number of parameters is predefined in the
29       file.  Use /sbin/sysctl -a or follow sysctl(8) to list all possible pa‐
30       rameters.  The description of individual parameters can be found in the
31       kernel documentation.
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EXAMPLE

34              # sysctl.conf sample
35              #
36                kernel.domainname = example.com
37              ; this one has a space which will be written to the sysctl!
38                kernel.modprobe = /sbin/mod probe
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FILES

41       /etc/sysctl.d/*.conf
42       /run/sysctl.d/*.conf
43       /usr/local/lib/sysctl.d/*.conf
44       /usr/lib/sysctl.d/*.conf
45       /lib/sysctl.d/*.conf
46       /etc/sysctl.conf
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48       The paths where sysctl preload files usually exist.   See  also  sysctl
49       option --system.
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AUTHOR

55       George Staikos ⟨staikos@0wned.org⟩
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REPORTING BUGS

58       Please send bug reports to ⟨procps@freelists.org⟩
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62procps-ng                         2020-06-04                    SYSCTL.CONF(5)