Date: Fri, 23 Mar 2001 08:11:44 +0700 (ICT) From: Olivier Nicole <on@cs.ait.ac.th> To: ostap@ukrpost.net Cc: freebsd-security@FreeBSD.ORG Subject: Re: DoS attack - advice needed Message-ID: <200103230111.IAA07068@banyan.cs.ait.ac.th> In-Reply-To: <3ABA09E0.141711C9@ukrpost.net> (message from ostap on Thu, 22 Mar 2001 16:19:12 %2B0200) References: <3ABA09E0.141711C9@ukrpost.net>
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>i'm interested in the ways how this can be done, and what is needeed >to prevent such attacks on 3.x freebsd, without blocking all icmp >traffic. One solution I heard about is to limit the bandwidth available for ICMP (say 5% of your total bandwidth). Of course during a DoS attack no valid ICMP will get through but at least your network will still be working. Regards, Olivier To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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