Multiple Sites on One IP

Hi, I'm new to Linode and still learning the set-up process, but have come across a problem I cannot resolve…

I have set the basics up for my server and all working. The hostname for the server is nserv.org (added to the /etc/host and /etc/hostname [Ubuntu 18.04] files).

I have two domains pointing to the Linode nameservers… nserv.org and bytilly.com. They have both been added as domains on the same Linode, I have set-up their DNS records. Both sites have been added to Apache etc and have basic index.html files in their respective public_html folders.

The problem then is if you go to nserv.org in the browser, it instantly loads bytilly.com which itself never loads - the browser just tries to refresh the whole time. If you go to bytilly.com directly, the browser tries to refresh the whole time.

Any ideas? I can ssh to nserv.org etc so all that part works, but I'm confused on what I have broken with having two domains on one IP. Any ideas very much welcome.

Thanks,

Simon