How to add Startup Script for MySQL or any other services in Centos/RedHat


Note: Perform the below steps as root user

 1) Find out the name of service’s script from /etc/init.d/ directory e.g. mysqld or httpd
2) Add it to chkconfig
chkconfig --add mysqld
3) Make sure it is in the chkconfig
chkconfig --list mysqld
4) Set it to autostart
chkconfig mysqld on

Note: To stop a service from auto starting on boot
chkconfig mysqld off

 If you have IPTables you need to flush them  and save that, So that on every reboot we get a flushed iptable.
1) iptables -F
2) service iptables save

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