1. 1# View Current Status of Startup Services
   1. The –list option displays all the services with the current startup configuration status.
   2. # chkconfig –list (this will list down all services)
   3. # chkconfig –list | grep network (this will list a service, in above example which is network service only)
2. 2# Add a new Service to the Startup
   1. Use –add option to add a specific service to the list of services that will be started during system reboot.
   2. # chkconfig –add iptables
   3. # chkconfig –list | grep iptables (to view the new added service) iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
3. 3# Remove a Service From Startup List
   1. To remove it from the startup list, use the –del option
   2. # chkconfig –del ip6tables
   3. # chkconfig –list | grep ip6tables (to check removed service)
4. 4# Turn-on or Turn-off a Service
   1. # chkconfig ip6tables off
   2. # chkconfig –level 35 ip6tables off (turn off ip6tables for both level 3 and 5)