From owner-freebsd-security Thu Mar 22 9:53:24 2001 Delivered-To: freebsd-security@freebsd.org Received: from awww.jeah.net (awww.jeah.net [216.111.239.130]) by hub.freebsd.org (Postfix) with ESMTP id DE7FB37B719 for ; Thu, 22 Mar 2001 09:53:20 -0800 (PST) (envelope-from chris@jeah.net) Received: from localhost (chris@localhost) by awww.jeah.net (8.11.1/8.11.0) with ESMTP id f2MHrGt12395; Thu, 22 Mar 2001 11:53:16 -0600 (CST) (envelope-from chris@jeah.net) Date: Thu, 22 Mar 2001 11:53:15 -0600 (CST) From: Chris Byrnes To: Mike Silbersack Cc: , Marc Rogers , Subject: Re: DoS attack - advice needed In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > Why? If you have idiots running ping -f yourserver.com from 150 ISPs > > around the world, you're going to want to filter ICMP. That's what I did > > awhile back. > > > > And I haven't found a valid reason to re-enable it. > > The ratelimiting in 4.3 handles that now, so it's not necessary to block > it anymore. (Though if you're being pung constantly, I can understand the > desire to block it.) Erm. 450mbps in 45 minutes? ;) We filtered it upstream on the edge routers, because it was killing the T1s, obviously. -Chris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message