netdev - Re: SYN attack, with FIN flag set

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Message-ID: <1322906522.2762.108.camel@edumazet-laptop>
Date:	Sat, 03 Dec 2011 11:02:02 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Denys Fedoryshchenko <denys@...p.net.lb>
Cc:	David Miller <davem@...emloft.net>,
	Michael Tokarev <mjt@....msk.ru>, netdev@...r.kernel.org
Subject: Re: SYN attack, with FIN flag set

Le samedi 03 décembre 2011 à 10:41 +0100, Eric Dumazet a écrit :
> [PATCH] tcp: drop SYN+FIN messages
> 
> Denys Fedoryshchenko reported that SYN+FIN attacks were bringing his
> linux machines to their limits.
> 
> Dont call conn_request() if the TCP flags includes SYN flag
> 

Oh well this should be :

Dont call conn_request() if the TCP flags includes FIN flag



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