nanog mailing list archives
Re: Numbering nameservers and resolvers
From: Doug Barton <dougb () dougbarton us>
Date: Mon, 16 Aug 2010 15:47:38 -0700
On 8/15/2010 11:49 PM, Mike wrote:
Hi Folks, 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?
Authoritative name servers should be on different networks, preferably in entirely different facilities. You've already had good suggestions about swapping secondary service, etc.
Resolving name servers should be separate from authoritative ones, but there is no reason that they can't be on the same subnet(s).
It's still a good idea to have more than one resolver on each local network, but there is also no reason they can't be on the same subnet as well. For larger and/or highly performance sensitive installations anycasting the resolvers (so that you only need 1 IP in resolv.conf) is becoming more popular.
Anyone got advice either way? Should I try to give sequential numbers to my resolvers for the benefit of consultants ... like .11, .22 and .33 for my server ips?
This sounds more like a local preference issue. Presumably the people who don't type into config files for a living will have their hosts configured with DHCP, and those who do will know how to copy and paste. :)
hth, Doug PS, if you need more formal help, see the URL below. -- ... and that's just a little bit of history repeating. -- Propellerheads Improve the effectiveness of your Internet presence with a domain name makeover! http://SupersetSolutions.com/
Current thread:
- Re: Numbering nameservers and resolvers, (continued)
- 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)