Sending again, this time from an account actually subscribed to the list, doh :)
> From: Dave Knight <dave.kni...@icann.org> > Date: July 9, 2010 4:39:38 PM EDT > To: Tomasz Chmielewski <man...@wpkg.org> > Cc: "bind-users@lists.isc.org" <bind-users@lists.isc.org> > Subject: Re: GeoIP and maintaining high availability > > On 2010-07-09, at 4:30 PM, Dave Knight wrote: > >> Hi Tomasz, >> >> On 2010-07-09, at 10:26 AM, Tomasz Chmielewski wrote: >> >>> Hi, >>> >>> I'm about to set up bind with GeoIP patches. >>> >>> What I'm not sure, is how do you guys handle high availability? >>> >>> Suppose I have zones for Americas and Europe, and a destination server in >>> Europe dies - how do you handle it so that new (i.e. web) requests hit >>> American servers only? >>> >>> Set TTL to low values (i.e. 10 minutes max) and reconfigure the zones if >>> European servers are down? Something else? >>> >>> I assume typical hosting, without access to sophisticated network settings, >>> like BGP. >> >> I think that you're confusing two issues. > > On second read of your post I see that it's me that's confusing issues :) > > You'll use GeoIP to direct European users to a European web server, and > Americans to an American one, etc. If one, or the other is down you want to > direct all users to the one that is up. > > A low TTL on the specific RRSet, ie > > www.example.com. 600 A 192.0.2.1 > > combined with a script running on the nameserver which checks that the target > web server is up and talking sense, and modifies that RRSet if it is not... > > sounds like what you want. > > Sorry for the noise. > > dave _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users