Date: Fri, 3 Nov 2000 23:26:03 +0200 (IST) From: Roman Shterenzon <roman@xpert.com> To: Buliwyf McGraw <buliwyf@libertad.univalle.edu.co> Cc: security@FreeBSD.ORG Subject: Re: Console Message II Message-ID: <Pine.LNX.4.10.10011032324080.32626-100000@jamus.xpert.com> In-Reply-To: <Pine.BSF.4.21.0011021222030.4623-100000@libertad.univalle.edu.co>
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On Thu, 2 Nov 2000, Buliwyf McGraw wrote: > > In this moment i am using ipf in the box which is showing de message: > "icmp-response bandwidth limit". > It doesnt happen all time, just some days for a few > When the message appears, the "System Load" grows to 5 or more, until > the server crash! > My question is: > > If i put this line in my "ipf rules" file: > block in proto icmp all > > What kind of problems could i get for this restriction??? > I think that there was some bug which was fixed long time ago, what version of FreeBSD are you running? Check the advisories. Obviously someone is icmp-flooding you. Blocking all icmp can hurt you badly.. --Roman Shterenzon, UNIX System Administrator and Consultant [ Xpert UNIX Systems Ltd., Herzlia, Israel. Tel: +972-9-9522361 ] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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