The obvious thing to check on a Red Hat Linux box is that theThis was exactly right! The firewalls were blocking the packets. I disabled them, and things now work correctly. Configuring the Linux firewalls to allow Amanda and Samba would be the next step. I'll ask Red Hat about that -- it didn't look obvious how to do that... Thanks!
firewalls are not blocking the packets. If either machine has it's
firewall enabled, it'll result in this kind of wierd timeouts.
-Harlan
