sysctl

sysctl - Kernel-Parameter zur Laufzeit konfigurieren

Beschreibung

sysctl ist Teil des Pakets procps

sysctl [options] [variable[=value]] [...]

sysctl -p [file or regexp] [...]

Unix	GNU	Parameter	Beschreibung
-n	--values		Do not display the key name when printing values
-e	--ignore		Ignore errors about unknown keys
-N	--names		Only display names (maybe useful for programmable completion)
-q	--quiet		Do not display the values set to stdout
-w	--write		Change sysctl settings
-p	--load	[=FILE]	Load in sysctl settings from the file specified or /etc/sysctl.conf if none given Specifying - as filename means reading data from standard input Using this option will mean arguments to sysctl are files, which are read in the order they are specified The file argument may be specified as regular expression
-a	--all		Display all values currently available
	--deprecated		Include deprecated parameters to --all values listing
-b	--binary		Print value without new line
	--system		Load settings from all system configuration 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
-r	--pattern pattern		Only apply settings that match pattern. The pattern uses extended regular expression syntax
-A			Alias of -a
-d			Alias of -h
-f			Alias of -p
-X			Alias of -a
-o			Does nothing, exists for BSD compatibility
-x			Does nothing, exists for BSD compatibility
-h	--help		Display help text and exit
-V	--version		Display version information and exit

/sbin/sysctl -a

/sbin/sysctl -n kernel.hostname

/sbin/sysctl -w kernel.domainname="example.com"

/sbin/sysctl -p/etc/sysctl.conf

/sbin/sysctl -a --pattern forward

/sbin/sysctl -a --pattern forward$

/sbin/sysctl -a --pattern 'net.ipv4.conf.(eth|wlan)0.arp'

/sbin/sysctl --system --pattern '^net.ipv6'

Load in sysctl settings from the file specified or /etc/sysctl.conf if none given

Specifying - as filename means reading data from standard input
Using this option will mean arguments to sysctl are files, which are read in the order they are specified
The file argument may be specified as regular expression

Load settings from all system configuration 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

Datei	Beschreibung
/proc/sys
/etc/sysctl.conf