Mine are old BBS style banners, generally glorifying the hostname, and a small tagline for the server itself, related to its function.

A hypothetical DNS server might greet you with "All your zones belong to us!".

> A hypothetical DNS server might greet you with "All your zones belong to us!".

DNS is usually UDP, so it's tricky.

Maybe a database server? We don't even have to modify the original quote.