How to check if some one is spamming from my server (Linux Plesk 8.x)

If you see a lot of smtp connections or your server gets constantly in spam black lists, maybe you should check if some bot spams through your server. The are 2 cases of spamming through a box: 1)using unsecure php forms that bots abuse 2)using smtp connection from an outside client this artice is about ...

One-way Web Hacking

Please follow this link here to know how easy it is for a webserver to be compromised… Its a fantastic article, but in the end you will learn that its almost impossible to keep your server secure.