We might get an error when adding an addon or parked domain via cPanel. The domain name never shows up under Addon Domains in cPanel but it does exists anywhere in the cPanel configuration. Lets’s see how to remove any trace of the domain from cPanel configuration manually.
First you need to check if the domain is owned by any particular user.
/scripts/whoowns mydomain.com owner
#grep mydomain.com /etc/userdomains mydomain.com: owner
Now you need to check if the zone file for the domain exists.
# ls -ld /var/named/mydomain.com.db -rw------- 1 named named 1198 Sep 4 2013 /var/named/mydomain.com.db
There exists a zone file for the domain and can remove the zone by executing the below command:
# /scripts/killdns mydomain.com
Now we need to check cPanel user files to see if there exists any traces of the domain.
# grep mydomain.com /var/cpanel/users/* /var/cpanel/users/owner:DNS4=mydomain.com # grep -R mydomain.com /var/cpanel/userdata/* Binary file /var/cpanel/userdata/owner/main.cache matches /var/cpanel/userdata/owner/main /var/cpanel/userdata/owner/main: mydomain.com: mydomain.testdomain.com /var/cpanel/userdata/owner/cache: mydomain.com: mydomain.testdomain.com
Edit any files that are found and remove the entire line that contains the domain name. Once you’ve done this, there shouldn’t be any entry for mydomain.com in the cPanel configuration file.
Rebuild the User domain database:
Rebuild the Apache configuration
You’d need to restart the Web Server as the configuration file is altered.
If the server is running on apache
# service httpd restart
If the server is running on LiteSpeed:
# service lsws restart
Once you’ve done all the steps, you should be able to add mydomain.com as an Addon domain under the account ‘owner’.