♦ First login to cPanel.
♦ Now click on Domains from Domains.
♦ Here rajibahsan.info and sub.rajibahsan.info have a main domain and a sub-domain. Click on Create a new domain to add addon domain.
♦ Now I will add this domain cyberdeveloperbd.info as addon domain in domain control panel so clicking on its manage icon for nameservice change.
♦ Here the default nameservers will show.
♦ Here the custom name servers should be placed and if you click on change nameserver change saved sucessfully! will show
♦ Now click on create a new domain to add domain.
♦ Here I have to set the directory to cyberdeveloperbd.info to add domain and click on submit button. If the nameserver is not updated then above error will show,
♦ Wait for a while and click the submit button again, the addon domain will be added.
♦ Here successfull will show a message like this.
Thank you:)