The chkconfig command can also be used
to activate and deactivate services. The chkconfig --list command displays a list of system
services and whether they are started (on)
or stopped (off) in runlevels 0-6. At the
end of the list is a section for the services managed by xinetd.
If the chkconfig --list command is used
to query a service managed by xinetd, it
displays whether the xinetd service is
enabled (on) or disabled (off). For example, the command chkconfig --list finger returns the following
output:
As shown, finger is enabled as an
xinetd service. If xinetd is running, finger
is enabled.
If you use chkconfig --list to query a
service in /etc/rc.d, service's settings
for each runlevel are displayed. For example, the command
chkconfig --list httpd returns the
following output:
httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
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chkconfig can also be used to configure
a service to be started (or not) in a specific runlevel. For
example, to turn nscd off in runlevels 3,
4, and 5, use the following command:
chkconfig --level 345 nscd off
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Warning |
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Services managed by xinetd are
immediately affected by chkconfig. For
example, if xinetd is running, finger is disabled, and the command chkconfig finger on is executed, finger is immediately enabled without having to
restart xinetd manually. Changes for other
services do not take effect immediately after using chkconfig. You must stop or start the individual
service with the command service daemon stop. In the previous example,
replace daemon with the name of the
service you want to stop; for example, httpd. Replace stop with
start or restart
to start or restart the service.
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