There's still a whack of services that should be disabled on a server like rpc/nfs, bluetooth, avahi, etc (depending on 5.x/6.x/7.x) even if you go with a minim

There's still a whack of services that should be disabled on a server like rpc/nfs, bluetooth, avahi, etc (depending on 5.x/6.x/7.x) even if you go with a minimal install. Bloat aside, they can be security risks.