chkconfig

Posted January 12th, 2009 by marslert

Learn some chkconfig command today. This command is used to maintain the /etc/rc[0-6].d directory hierarchy.

First of all, lets understand and differentiate some of the /etc/rc[0-6].d .

rc1.d >>> Single user mode

rc2.d >>> Custom user mode

rc3.d >>>Multiple user mode with networking availability

rc4.d >>> Custom user mode

rc5.d >>> Multiple user mode with networking availability that has GUI mode (xlogin)

# chkconfig –list
haldaemon       0:off   1:off   2:off   3:on    4:on    5:on    6:off
httpd           0:off   1:off   2:off   3:on    4:off   5:off   6:off
ip6tables       0:off   1:off   2:on    3:on    4:on    5:on    6:off
iptables        0:off   1:off   2:on    3:on    4:on    5:on    6:off
kudzu           0:off   1:off   2:off   3:on    4:on    5:on    6:off
lvm2-monitor    0:off   1:on    2:on    3:on    4:on    5:on    6:off
mcstrans        0:off   1:off   2:on    3:on    4:on    5:on    6:off
messagebus      0:off   1:off   2:off   3:on    4:on    5:on    6:off
multipathd      0:off   1:off   2:off   3:off   4:off   5:off   6:off
mysqld          0:off   1:off   2:off   3:off    4:off   5:off   6:off
netconsole      0:off   1:off   2:off   3:off   4:off   5:off   6:off
netfs           0:off   1:off   2:off   3:on    4:on    5:on    6:off
netplugd        0:off   1:off   2:off   3:off   4:off   5:off   6:off
network         0:off   1:off   2:on    3:on    4:on    5:on    6:off
rdisc           0:off   1:off   2:off   3:off   4:off   5:off   6:off
restorecond     0:off   1:off   2:on    3:on    4:on    5:on    6:off
sshd            0:off   1:off   2:on    3:on    4:on    5:on    6:off
syslog          0:off   1:off   2:on    3:on    4:on    5:on    6:off

Now, mysqld service was set to off for rc3.d . We are going to On it in rc3.d level with below command.

# chkconfig –levels 3 mysqld on

Will see S64mysqld in /etc/rc3.d in my case. I see K36mysqld when levels 3 was off in my case.

2 Responses to “chkconfig”

  1. JYTeh

    Hi,

    Great , thanks for sharing :)
    Anyway,
    rc2.d >> Multiple user mode without networking availability

  2. Marslert

    Hi Teh,

    Thanks for dropping off at my blog. You are corrected :)

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