This implementation of chkconfig was inspired by the chkconfig command present in the IRIX operating system. Rather than maintaining configuration information outside of the /etc/rc[0-6].d hierarchy, however, this version directly manages the symlinks in /etc/rc[0-6].d.
In Redhat Linux you have a powerfull tool called chkconfig, you can list all the services with:
#chkconfig --list
To see the services started in runlevel 3:
#chkconfig --list | grep 3:on
To turn off a service in all the runlevels:
#chkconfig pcmcia off
Turn off a service in a desired runlevel:
#[root@monitor1]# chkconfig --list | grep hpoj
hpoj 0:off 1:off 2:on 3:on 4:on 5:on 6:off
#[root@monitor1]# chkconfig --level 3 hpoj off
#[root@monitor1 rc3.d]# chkconfig --list | grep hpoj
hpoj 0:off 1:off 2:on 3:off 4:on 5:on 6:off
If you want to add a new service, you created the /etc/rc.d/init.d/ file and now you wans to manage the service, configure it to start and stop on desired runlevels.
Edit the /etc/rc.d/init.d/service-name file, and add this line on the top:
#chkconfig --list
To see the services started in runlevel 3:
#chkconfig --list | grep 3:on
To turn off a service in all the runlevels:
#chkconfig pcmcia off
Turn off a service in a desired runlevel:
#[root@monitor1]# chkconfig --list | grep hpoj
hpoj 0:off 1:off 2:on 3:on 4:on 5:on 6:off
#[root@monitor1]# chkconfig --level 3 hpoj off
#[root@monitor1 rc3.d]# chkconfig --list | grep hpoj
hpoj 0:off 1:off 2:on 3:off 4:on 5:on 6:off
If you want to add a new service, you created the /etc/rc.d/init.d/ file and now you wans to manage the service, configure it to start and stop on desired runlevels.
Edit the /etc/rc.d/init.d/service-name file, and add this line on the top:
#!/bin/bash
# chkconfig: 2345 55 25
# description: A service that does powerful things
#
This is a description of what this line does:
# chkconfig: 2345 55 25
| | |
| | priority for kill scripts
| |
| priority for start scripts
|
run levels at which to start service
Then execute, for example, adding the qmail service:
#[root@monitor1 init.d]# chkconfig --add qmail
#[root@monitor1 init.d]# chkconfig --list qmail
qmail 0:off 1:off 2:off 3:on 4:off 5:on 6:off
Now configure it to start on desired runlevels !
# chkconfig: 2345 55 25
# description: A service that does powerful things
#
This is a description of what this line does:
# chkconfig: 2345 55 25
| | |
| | priority for kill scripts
| |
| priority for start scripts
|
run levels at which to start service
Then execute, for example, adding the qmail service:
#[root@monitor1 init.d]# chkconfig --add qmail
#[root@monitor1 init.d]# chkconfig --list qmail
qmail 0:off 1:off 2:off 3:on 4:off 5:on 6:off
Now configure it to start on desired runlevels !
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