>[snip] > ipchains -I input -j REJECT -p tcp -s 10.11.11.0/0 -d reject_everything_else/0 25 > >When you say "reject_everything_else/0", you mean you're using CIDR >like 1.2.3.4/0? >The "/x" is the mask indicating the network size, e.g. a netmask of >24 is a netmask of 255.255.255.0. When you say a.b.c.d/0, you're >really saying 0.0.0.0/0, i.e. the whole internet. Probably not >what you want. I am sure I have it wrong. That is why I made the post:) I need to stop my server from talking to port 25, except the few networks I relay to. ?? _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota http://www.mn-linux.org tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list