Turning off kazaa (used to be: file sharing for linux)

Warren Togami warren at togami.com
Sat Jan 3 11:15:18 UTC 2004


Matthew Wilson wrote:
>>2) can anyone tell me how to block access to kazaa?
>>thanks,
>>alex.
>>
> 
> 
> I came across this last night: http://l7-filter.sourceforge.net/
> 
> It is a kernel module that can filter packets based on their application
> data, and is intended to spot services like kazaa which use
> unpredictable ports. It can be used with iptables to filter them out, if
> you are running a linux gw.
> 
> cheers
> Matthew Wilson.

http://www.lowth.com/p2pwall/ftwall/
http://togami.com/~warren/fedora/ftwall-1.07-0.fdr.3.src.rpm
bugzilla.fedora.us is down until Monday, January 5th due to the power 
maintenace on that building, so I can't include that link now.

ftwall is a Netfilter QUEUE based detection and blocking mechanism for 
kazaa's fasttrack protocol.  It requires some extra Netfilter kernel 
modules available from netfilter.org's patch-o-matic, and some iptables 
rules.  I use it in production for one 500+ machine network at a school 
in Hawaii.

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=109474
Only trouble is ftwall itself wont compile on FC1 due to this 
glibc-kernheaders bug in tcp.h.  If I replace tcp.h with the one from 
RH9, then I am able to compile ftwall.  The resulting binary RPM works 
fine on FC1.

Warren





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