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- about chkconfig

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klakier 2002-03-29 18:32:03 +00:00
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LDP/guide/docbook/PLD-Guide/admin-manual/basics.xml
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@ -91,6 +91,59 @@ Bringing up interface eth0.........................................[ DONE ]
Bringing up interface eth1.........................................[ DONE ]
</programlisting>
</example>
<para>
Every subsystem script contains information in what runlevels
that subsystem should be started by default with line like this
(example line from <filename>/etc/rc.d/init.d/syslog</filename> subsystem):
<programlisting# chkconfig: 2345 30 70></programlisting>
This tells rc-scripts to run the subsystem when entering runlevels
2, 3, 4, 5 (and respectively, to stop subsystem when leaving one of these
runlevels). Numbers 30 and 70 are priority levels for start/stop.
See <citerefentry>
<refentrytitle>chkconfig</refentrytitle>
<manvolnum>8</manvolnum>
</citerefentry> for details.
</para>
<para>
Set of subsystems/services run in particular runlevel can be changed
with <command>chkconfig</command> command.
Some examples:
<programlisting>
] # list current status
] # asterisks (***) means the service/subsys is started/stopped in runlevel
]
] chkconfig --list
gpm 0:--- 1:--- 2:*** 3:*** 4:*** 5:*** 6:---
network 0:--- 1:--- 2:*** 3:*** 4:*** 5:*** 6:---
httpd 0:--- 1:--- 2:--- 3:*** 4:*** 5:*** 6:---
random 0:--- 1:*** 2:*** 3:*** 4:*** 5:*** 6:---
qmail 0:--- 1:--- 2:*** 3:*** 4:*** 5:*** 6:---
single 0:--- 1:*** 2:--- 3:--- 4:--- 5:--- 6:---
klogd 0:--- 1:--- 2:*** 3:*** 4:*** 5:*** 6:---
console 0:--- 1:--- 2:--- 3:*** 4:*** 5:*** 6:---
sshd 0:--- 1:--- 2:--- 3:*** 4:*** 5:*** 6:---
nfsfs 0:--- 1:--- 2:--- 3:*** 4:*** 5:*** 6:---
timezone 0:--- 1:--- 2:*** 3:*** 4:*** 5:*** 6:---
syslog 0:--- 1:--- 2:*** 3:*** 4:*** 5:*** 6:---
rc-inetd 0:--- 1:--- 2:--- 3:*** 4:*** 5:*** 6:---
] # exclude sshd service from runlevels 345
] chkconfig sshd off
] # include sshd service in runlevels 345 again
] chkconfig sshd on
</programlisting>
<note>
<para>
Removing/adding service to runlevel takes effect next time the
runlevel is changed.
It does not automatically start subsystem if one is not running,
or stop it if it's already running.
</para>
</note>
</para>
</section>
<section id="runlevels">
<title>Changing runlevels</title>