Martin J. Hannigan put this into my mailbox:
[ snip ]
Two months with these filters, and no complaints yet.
Was that some wrappered service? Looked like tcp_wrappers. I think a router with enough memory would be a better performer for filtering activies at that layer. I did go ahead and install the relay denial rulesets published on sendmail.org for 8.8.x and they work fine. Cyberpromo appears to have been using "Cyberbomber" on our ports. I guess I'm naive, but I thought NAPS wanted to stop this kind of thing, and most had explicit rules about it. Guess not. Back to the clue-store with me. :-/ Regards, -- Martin Hannigan (hannigan@firefly.net) Voice: 617.528.1099 Firefly Network, Inc. - Network Operations Network Engineer www.firefly.net Semper Cabalis