1. nano /etc/hosts and make sure it is something like e.g. 192.168.0.100 server1.angelright.com server1 (adjust accordingly). 2. echo server1.angelright.com > /etc/hostname 3. /etc/init.d/hostname restart 4. Run hostname and hostname -f to check whether it is now the right one. 5. If necessary to you, run ispconfig_update.sh and make sure your server is server1.angelright.com during the update process. Note: Choose git-stable if you are already on 3.1.2. You can revert it back to 3.1.2 by running it second time and choosing stable during the process. You don't have to run this if your server is already server1.angelright.com when you installed your ISPC. 6. Test your nginx with nginx -t and then restart your nginx to make sure it is now working. 7. Redo this guide wherever necessary and make sure your server website created is server1.angelright.com. The website angelright.com is obviously wrong.