chkconfig

Manage the runlevel of services on CentOS 6. More information: https://manned.org/chkconfig.

• List services with runlevel:

chkconfig --list

• Show a service’s runlevel:

chkconfig --list {{ntpd}}

• Enable service at boot:

chkconfig {{sshd}} on

• Enable service at boot for runlevels 2, 3, 4, and 5:

chkconfig --level {{2345}} {{sshd}} on

• Disable service at boot:

chkconfig {{ntpd}} off

• Disable service at boot for runlevel 3:

chkconfig --level {{3}} {{ntpd}} off