May 05, 2005

[Research] Sendmail cf hacking

Working on hacking the Sendmail cf file to preferentially require authentication on port 25.

I want to require authentication on port 25 for all client addresses coming in to KE except TAIKA — thus allowing people off campus to continue relaying after authenticating but not requiring TAIKA/Baleen to authenticate.

I’m getting somewhere with local rule sets — I’ve got it looking up the client IP in a map and if it’s there allowing it to relay, but I don’t yet have it to the point of being able to bail out and allow relay before that if the client has authenticated. I clearly need some work on the first part of the rule set, but I’m not sure quite how to rehabilitate it yet.

Posted by Rowan Littell at May 5, 2005 04:56 PM