Any tips on hardening Umbrel’s PI security? Can I use UFW and if so what ports does Umbrel need open? Fail2ban? My umbrel is behind a router in a LAN with no ports open on the router to it; nevertheless I am in the habit of hardening pi’s whenever I use them.

UFW with Umbrel?

DarthCoin September 21, 2021, 10:40pm 8

Here you have another 2 guides that you can use:

and