nanog mailing list archives
Re: ISP network design of non-authoritative caches
From: Alex Bligh <alex () alex org uk>
Date: Sun, 18 Nov 2001 10:19:22 -0000
--On Saturday, 17 November, 2001 4:48 AM -0500 Sean Donelan <sean () donelan com> wrote:
We know this isn't good engineering practice, because another national ISP with millions of subscribers configured their network the same way, and experienced a multi-hour service disruption affecting most of their users a couple of years ago when an error blocked access to their two caching-only, name servers.
You mean there are national ISPs out there, who have exactly 2 caching nameservers, as opposed to configure their clients with 2 IP addresses (perhaps always the same 2) which perform name resolution? Wow. Is this some sort of retro fashion? -- Alex Bligh Personal Capacity
Current thread:
- Re: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches), (continued)
- Message not available
- Re: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) Simon Higgs (Nov 19)
- Re: how many roots must DNS have... bmanning (Nov 19)
- Re: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) Steve Gibbard (Nov 21)
- Re: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) Sean Donelan (Nov 21)
- RE: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) W.D.McKinney (Nov 22)
- RE: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) Randy Bush (Nov 22)
- Message not available
- Re: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) Simon Higgs (Nov 27)
- Re: how many roots must DNS have before it's considered broken (Re: ISP network design of non-authoritative caches) Simon Higgs (Nov 27)
- Re: ISP network design of non-authoritative caches Valdis . Kletnieks (Nov 19)
- Re: ISP network design of non-authoritative caches Simon Higgs (Nov 19)
- Re: ISP network design of non-authoritative caches Joel Baker (Nov 18)
- Re: ISP network design of non-authoritative caches Randy Bush (Nov 18)
- Re: ISP network design of non-authoritative caches Rich Fulton (Nov 18)