@rakor haven't had issues with the firewall. As on the router other than my ssh port. All other ports are closed on the router itself. Which doesn't affect my laptop connection. Plus with the firewall, not a huge issue to me. Used to do alot when I had windows. Far less with Linux I feel.
So firewall is mostly a non issue. Don't use a VM, don't have any ports running out of hand. Plus other than ssh everything else is closed down when I'm away.
@pkimpton my problem is about the small tweaks und tools... Firewall setup? Backup setup? Etc. All those little things you don't see when working, but might hurt when missed