You can use noip.com for free dynamic DNS

And if you’re concerned about whoever finding out you’re hosting illegal content you can have a WireGuard server and have everything go through it instead of being open to the web. This also has the advantage of being essentially undetectable from the outside

My ISP (Bezeq, in Israel) has a list of approved SFP modules, and they can supply the modules themselves, but there’s no issue using your own router with their SFP module

Of course this will differ with your provider, you should check with them, though be aware the level 1 customer service reps might not know what you’re talking about

This does seem like an issue, I can help you free up some PCIe slots if you’d like

I got a hEX S a few weeks ago and I love it

Why do ISPs put in the extra effort to make their service shittier? What benefit do they gain from forcing more load to their DNS servers?

At the moment I’m doing primarily hopes and prayers