Starting & Stopping services on Ubuntu bootup

my@my-desktop:~$ sudo su
Provide the command update-rc.d YOURSERVICENAME defaults in terminal.

root@my-desktop:/home/my# update-rc.d YOURSERVICENAME defaults

This will display the following:
Adding system startup for /etc/init.d/YOURSERVICENAME ...
/etc/rc0.d/K20YOURSERVICENAME -> ../init.d/YOURSERVICENAME
/etc/rc1.d/K20YOURSERVICENAME -> ../init.d/YOURSERVICENAME
/etc/rc6.d/K20YOURSERVICENAME -> ../init.d/YOURSERVICENAME
/etc/rc2.d/S20YOURSERVICENAME -> ../init.d/YOURSERVICENAME
/etc/rc3.d/S20YOURSERVICENAME -> ../init.d/YOURSERVICENAME
/etc/rc4.d/S20YOURSERVICENAME -> ../init.d/YOURSERVICENAME
/etc/rc5.d/S20YOURSERVICENAME -> ../init.d/YOURSERVICENAME

Restart the PC. The service YOURSERVICENAME will be started automatically on PC boot up.

To remove the service on PC boot

Provide the command,update-rc.d YOURSERVICENAME remove in terminal.
root@my-desktop:/home/my# update-rc.d YOURSERVICENAME remove