nanog mailing list archives
Re: ISP network design of non-authoritative caches
From: "Joel Baker" <lucifer () lightbearer com>
Date: Sun, 18 Nov 2001 12:51:08 -0700
On Sun, Nov 18, 2001 at 10:19:22AM -0000, Alex Bligh wrote:
--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?
Yes, there are. No, it's not fashion. Though it's about as foolish. Names avoided to prevent NDA lawsuits. You can fill in the blanks. -- *************************************************************************** Joel Baker System Administrator - lightbearer.com lucifer () lightbearer com http://users.lightbearer.com/lucifer/
Current thread:
- Re: how many roots must DNS have..., (continued)
- 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)
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- 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)