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- # IRC - Internet Relay Chat - RFC 1459
- # Pattern quality: good veryfast
- #
- # Usually runs on port 6666 or 6667
- # Note that chat traffic runs on these ports, but IRC-DCC traffic (which
- # can use much more bandwidth) uses a dynamically assigned port, so you
- # must have the IRC connection tracking module in your kernel to classify
- # this.
- #
- # This pattern has been tested and is believed to work well. If it does not
- # work for you, or you believe it could be improved, please post to
- # l7-filter-developers@lists.sf.net . This list may be subscribed to at
- # http://lists.sourceforge.net/lists/listinfo/l7-filter-developers
- irc
- # First thing that happens is that the client sends NICK and USER, in
- # either order. This allows MIRC color codes (\x02-\x0d instead of
- # \x09-\x0d).
- ^(nick[\x09-\x0d -~]*user[\x09-\x0d -~]*:|user[\x09-\x0d -~]*:[\x02-\x0d -~]*nick[\x09-\x0d -~]*\x0d\x0a)
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