Date: Wed, 7 Jun 2000 08:53:50 -0400 (EDT) From: Steve Hovey <shovey@buffnet.net> To: first name <ejsilver49@hotmail.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: DNS DOS attack? Probably not.... Message-ID: <Pine.BSF.4.05.10006070853410.17235-100000@buffnet11.buffnet.net> In-Reply-To: <20000606190749.7705.qmail@hotmail.com>
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Might be running spam mailers On Tue, 6 Jun 2000, first name wrote: > > I run a DNS server for a small ISP. In the middle of the night, our DNS > server gets repeated requests for lookups from a small number of users. One > user might generate 100 to 150 DNS requests each minute. Others might send > 50 to 75 requests per minute. > > There is a core group that does this every night. And an equal number of > people send the repeated DNS requests off and on. Most are forward lookups, > but about 25% are reverse lookups. > > Any idea what the hell they are doing? DOS? Cracking? Trying to keep the > connection nailed up? Why would any program need to do 100 DNS lookups in a > minute? Could I have set up something wrong? Can't imagine what. > > Thanks for any ideas or information. > > EJ > ________________________________________________________________________ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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