[IRCServices Coding] IRC attacks

[Vitaliy Ovsyannikov]

Hello, IRC.

Some good guys do regular attacks on my irc network using many
different hosts in parallel. Very often, this is done using open proxies.
Is this possible to implement simple port scanning algorithm to
detect clients with many open tcp ports (or detect blacklisted port
numbers or ranges of them) and block the connection? The problem is
real one. Help please. Server software is bahamut-based fork with
support of Russian codepages translation.

-- 
Sincerely,
Vitaliy Ovsyannikov
JSC Skala, Krasnoyarsk, Russia