Re: Dos attack

From: NeoSadist (neosad1st_at_charter.net)
Date: 08/24/04


Date: Mon, 23 Aug 2004 19:59:29 -0600

Jim G. wrote:

> How do I stop a Dos Syn Attack. My isp has already stopped Upd connections
> from hitting my servers, but I still have 225,000 connections to my 5
> servers from a Syn attack. My load balancer is doing well keeping up and I
> read something about tcp_syncookies will that help if I enable it? I am
> behind a firewall, but its still causing my site to slow.
>
> Help!!!
>
> Jim

Oh, I forgot. If you want, you can use iptables to filter what's incoming,
therefore that could help. If this machine is a home desktop, I recommend
not allowing incoming SYN except when necessary anyways, but then again,
read up on IPTables as well.

-- 
Yesterday I was a dog.  Today I'm a dog.  Tomorrow I'll probably still
be a dog. Sigh!  There's so little hope for advancement.
                -- Snoopy


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