nanog mailing list archives
Re: Numbering nameservers and resolvers
From: Valdis.Kletnieks () vt edu
Date: Mon, 16 Aug 2010 03:14:53 -0400
On Sun, 15 Aug 2010 23:49:05 PDT, Mike said:
I am needing to renumber some core infrastructure - namely, my nameservers and my resolvers - and I was wondering if the collective wisdom still says heck yes keep this stuff all on seperate subnets away from eachother? Anyone got advice either way
Microsoft used to have all their DNS servers on one /24. Nine years later, you can still use Google on just 'microsoft dns server failure subnet' and find this on the second page of over a million hits: http://www.wired.com/techbiz/media/news/2001/01/41423 (OK, so our local resolvers are in one /24, but it's a bridged VLAN across our entire campus, the servers are physically in buildings several miles apart, and if you can't reach at least one of them, it probably means our campus core network is hosed enough that you're not going to do anything with a DNS response anyhow... Our authoritative servers are split across 2 different AS's in 2 different states.) Whatever gave you the idea that collective wisdom could *possibly* have moved away from "spread it out as far as you can to avoid single points of failure"?
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Current thread:
- Re: Numbering nameservers and resolvers, (continued)
- Re: Numbering nameservers and resolvers Lyndon Nerenberg (Aug 18)
- Re: Numbering nameservers and resolvers Joe Greco (Aug 17)
- Re: Numbering nameservers and resolvers Chris Adams (Aug 17)
- Re: Numbering nameservers and resolvers Jared Mauch (Aug 17)
- Re: Numbering nameservers and resolvers John Kristoff (Aug 17)
- Re: Numbering nameservers and resolvers Doug Barton (Aug 17)
- Re: Numbering nameservers and resolvers Patrick W. Gilmore (Aug 16)
- Re: Numbering nameservers and resolvers Arie Vayner (Aug 16)
- Re: Numbering nameservers and resolvers Jared Mauch (Aug 16)
- Re: Numbering nameservers and resolvers Aria Stewart (Aug 16)
- Re: Numbering nameservers and resolvers Valdis . Kletnieks (Aug 16)
- Re: Numbering nameservers and resolvers Jeremy Kister (Aug 16)
- Re: Numbering nameservers and resolvers Randy Bush (Aug 16)
- Re: Numbering nameservers and resolvers Arie Vayner (Aug 16)
- Re: Numbering nameservers and resolvers Jeroen Massar (Aug 16)
- Re: Numbering nameservers and resolvers Doug Barton (Aug 16)
- Re: Numbering nameservers and resolvers Graham Beneke (Aug 17)
- Re: Numbering nameservers and resolvers Nick Olsen (Aug 17)
- Re: Numbering nameservers and resolvers Mikael Abrahamsson (Aug 17)
- Re: Numbering nameservers and resolvers Robert E. Seastrom (Aug 18)
- Re: Numbering nameservers and resolvers Mikael Abrahamsson (Aug 17)