> Date: Wed, 13 May 2009 10:29:19 -0400 > From: "Jeff Lightner" <jlight...@water.com> > > It is network redundancy only in so far the DOS attack doesn't cause > your CPU and memory to get slammed. > > If you're doing redundancy you really ought to do the whole thing by > getting another server and putting IT on the other network. Then you > don't have a single point of failure (unless they're both in the same > data center). > > If you really want to do two different IPs on one host you could > probably use views to accomplish this but that would be all within a > single BIND setup so your theoretical DOS attack would probably cause > both views to have issues.
There is no reason NOT to have redundancy (two hosts, two networks) no matter how small your network is. Google for "free dns hosting". You'll get back a very large number of hits. Use your google-foo to limit the search parameters some. You'll get back a slightly smaller, but still very large, number of hits. Investigate to see who has better services. Select one. Configure and configure at your domain registrar. You're back in service. Regards, Gregory Hicks > > -----Original Message----- > From: bind-users-boun...@lists.isc.org > [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Bradley > Giesbrecht > Sent: Wednesday, May 13, 2009 10:22 AM > To: Stephane Bortzmeyer > Cc: bind-users@lists.isc.org > Subject: Re: two NS servers on a single host > > > On May 13, 2009, at 6:51 AM, Stephane Bortzmeyer wrote: > > > On Wed, May 13, 2009 at 09:02:55PM +0800, > > Tech W. <tech...@yahoo.com.cn> wrote > > a message of 34 lines which said: > > > >> I want to give two NS records for my domain, each NS take each of > >> the IP set in the host. > > > > Why? This would be completely useless. RFC 1034 and other documents > > call for at least two name servers, for redundancy reasons. If the two > > name servers are on the same host, what's the point? There would be no > > gain in reliability. > > If you have ever had the ip for your name server the target of a dos > attack you could have blocked traffic to that ip and still had dns. > > Two networks to same host is network redundancy and has value. > --------------------------------------------------------------------- Gregory Hicks | Principal Systems Engineer | Direct: 408.569.7928 People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf -- George Orwell The price of freedom is eternal vigilance. -- Thomas Jefferson "The best we can hope for concerning the people at large is that they be properly armed." --Alexander Hamilton _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
