To bring it back in the services list, go to the file /usr/local/directadmin/data/admin/services.status
and check if this entry is there: named=ON
Then try "service named restart" and see if it starts, or if there errors. You can also try "service named status" for further info.
To rebuild the named.conf file: https://www.hivelocity.net/kb/how-d...e-named-conf-file-on-a-direct-admin-server-2/