nanog mailing list archives
Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies
From: Stephane Bortzmeyer <bortzmeyer () nic fr>
Date: Mon, 28 May 2012 21:32:29 +0200
On Tue, May 29, 2012 at 12:21:10AM +0530, Anurag Bhatia <me () anuragbhatia com> wrote a message of 28 lines which said:
I know few registry/registrars which do not accept both (or all) name servers of domain name on same subnet.
Since my employer is one of these registries, let me mention that I fully agree with David Conrad here. On Tue, May 29, 2012 at 12:54:01AM +0530, Anurag Bhatia <me () anuragbhatia com> wrote a message of 42 lines which said:
I am building redundancy within that setup. I mean it will be software based BGP so if hardware if fried up, it will break BGP session and pull off routes anyway and for cases like DNS server (software) failure, I will monitor it via simple bash script which can turn bgp daemon down.
You will address *some* failure modes with this setup but not all. Again, see David Conrad's examples of a fat finger adding your prefix in a route-map.
Current thread:
- DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies David Conrad (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Tony Finch (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Patrick W. Gilmore (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Randy Bush (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Anurag Bhatia (May 28)
- <Possible follow-ups>
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Stephane Bortzmeyer (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Brett Frankenberger (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Mikkel Mondrup Kristensen (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Mark Andrews (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Stephane Bortzmeyer (May 29)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Brett Frankenberger (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Randy Bush (May 28)
- Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies Max Larson Henry (May 28)