Hi, I have reason to belive that my computer is used as a relay host for spam. Walking through the logs, I found one ip number which has no ip name, but it connects the computer every hour or so and sends some mail.
I want to block this address, but I have not succeeded in configuring the hosts.deny file correctly. This is what I have: hosts.allow: empty hosts.deny: ALL: 1.2.3.4 ALL: PARANOID where 1.2.3.4 is the spammers' address. I want to deny him smtp access (or all access to this machine). I tried to do this with my own ip, but I was still able to connect to port 25. Telnet access was forbidden however. I use Postfix as maildaemon. Thanks in advance, Sebastiaan
