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On getting cracked and recovering with NMAP Print E-mail
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Source: LinuxWorld - Posted by Dave Wreski   
Hacks/Cracks The feeling you get in the pit of your stomach when you first suspect that your site has been cracked is similar to the feeling you get when you first discover your house has been broken into. It is a sickening sense of muted outrage.. . . The feeling you get in the pit of your stomach when you first suspect that your site has been cracked is similar to the feeling you get when you first discover your house has been broken into. It is a sickening sense of muted outrage. Muted because you are still hoping against hope that it hasn't really happened. But your eyes are telling you that it has, that in spite of your denial you've been violated, that you're 0wn3d.

Call it baud karma. Call it carelessness. Call it inevitable. I was 0wn3d and didn't know it. After downloading and installing BETA 21 of version 2.54 of NMAP (and its graphical frontend), I su'd to root, fired it up, and aimed a FIN stealth scan at ports 1-32000 on my server. I was running portsentry on the server, but my desktop machine -- the one I was running NMAP on -- was on the portsentry ignore list so that it wouldn't simply reroute my inquisitive packets to /dev/null after I hit the first protected port.

Read this full article at LinuxWorld

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