Stories
Slash Boxes
Comments
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

use Perl Log In

Log In

[ Create a new account ]

gav (2710)

gav
  (email not shown publicly)
http://www.estey.com/
AOL IM: flufflegavin (Add Buddy, Send Message)

Hacker in NYC.

Journal of gav (2710)

Friday August 27, 2004
08:21 PM

Event::Lib and p0f-dnsbl

[ #20610 ]

I've been playing about with Event::Lib (a wrapper around libevent) this evening and having great fun. It makes handing multiple filehandles a piece of cake by specifying event handlers that get triggered. It also supports timers.

The reason I'm doing this is that I had an idea to use p0f, a passive OS fingerprinting tool, to record the IP and platform of each connection to my SMTP server, and then query this as if it was a local DSNBL in SpamAssassin. My thinking is that a lot of spam is going to come from Windows boxes and giving them a SA score will help cut down on the spam that gets through. Over 95% of the email I get is now spam.

In about 100 lines of code I've got the majority of this done, all I have to do is figure out is how to return valid DNS records using Net::DNS...

The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More | Login | Reply
Loading... please wait.