[Snort-users] P2P Rules and Sending TCP Resets.

Josh Berry josh.berry at ...10221...
Fri Feb 27 15:37:02 EST 2004

In order to use tcp-resets, you will have to build snort with
--enable-flexresp (or --enable-flexresp2).  What I would do is use
Snort-Inline at the perimeter and block it inline instead.

> Hi, We're receiving a lot of complaints regarding copyright infringements
> from users within our Network using P2P software. Dealing with the
> complaints about P2P use is almost a full time job in itself at the
> moment.
> We've succesfully managed to block some applications using Cisco NBAR but
> the more clued up students are configuring their P2P clients to use high
> port numbers which is giving us problems with Gnutella, Fasttrack and Bit
> Torrent in particular. We have managed to identify these users with Snort
> running on NetBSD. I've read about TCP resets in the archives but can't
> find any examples of how to implement this, can anyone help please?
> Regards
> Rob Ward
> Network Northwest Support
> University of Liverpool
> Computing Services Department
> Tel: 0151 794 4449
> Fax: 0151 794 4442
> Mob: 07970 247 326
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Josh Berry, CISSP
CTO, VP of Product Development
josh.berry at ...10268...

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