I installed MX a bit over a year ago when my patience with ubuntu finally ran out. It’s great, running with plasma 5 on a pretty old laptop. Up to date repo mostly accounts for the stable-but-slow debian repos. One of the biggest plus points is the community forums - active, engaged, and helpful, far more so than I’ve experienced in many other distro communities. Can recommend.

The IP address you’ve used as an example would not work. That is a ‘local’ address, ie home address. If you want DNS to resolve your public domain name to your home server, you need to set the A record to your ‘public’ IP address, ie the external address of your modem/router. Find this by going to whatismyip.com or something similar.

That will connect your domain name with your router. You then set up port forwarding on the router to pass requests to the server.

I’ve run into this when one person on a network is using Linux or Mac, and another Windows. They have different filename rules.