[CentOS] How to block Yahoo , MSN messanger and Kazza with IPTABLES

emporindo napsal(a):
> Hi Indunil, 
> 
> for bloking P2P  , you can use IPP2P  --> www.ipp2p.org  and you can find the RPM base from http://homen.vsb.cz/~hrb33/el4/hrb/stable/i386/RPMS/    thanks mr David
> 
> for bloking YM  and  MSN , better use combination iptables and squid to block url and site for server YM . 
> regards 
> 

Try L7-filter. http://l7-filter.sourceforge.net/protocols
David Hrbáč