I have tried 4 times to add a sub domain on a production server which has no test environment and every time adding sub domain crashes the litespeed. The server ran earlier Apache2 and is migrated. I have done the following steps: 1.) Added folders 2.) Added listener 3.) Added virtual host 4.) Added A name record for subdomain Unfortunately this is a production server and debugging level had been set to none so I have only a clue that last thing what has happened is the reading of vconf file and after that there is no log. I am not an IT person so I am out of my depth here but currently only one who at least know how to use shell access I wouldn't want to crash the server again because I did it all ready 4 times So how should I proceed? Put the debugging to high and try 5:th time?