On Fri, 15 Oct 2004 11:28:37 -0400 (EDT), Matt Pusateri <[EMAIL PROTECTED]>
> Second, Wouldn't it also be possible for a server to be lame due to a > valid DNS change that hasn't propagated through to all name servers > yet. For example, you make a request to your ISP name server since > you are using it as a forwarder. They have example.com cached so they > give you the NS from their cache. Unfortunately example.com just made > a network change either changed ISP's or servers or whatever so the > information that your ISP had cached is no longer accurate. Hopefully > example.com wouldn't get rid of their old name server until the new > one propageted, but I could see how some sites due to resources or > politics wouldn't have that choice. Or have I missed something here. Yes, you've missed something. A lame server is a server basically a server that is listed as being "authoritative" (there's a term that should probably be defined[1]) for a domain but when queried answers with a "non-authoritive" answer. See this link for more information: http://www.menandmice.com/online_docs_and_faq/glossary/glossarytoc.htm?lame.delegation.htm Cheers, Tanner [1] An "authoritative" server is what that doesn't have to query another server in response to a domain query. This includes master server *and* slave servers (because a slave server doesn't "query" master server, it transfers entire zones at a time). Authoritative servers should be all servers referenced in NS records for a domain. For example, for trilug, you can use the host command to see it's name servers: % host -t ns trilug.org trilug.org name server ns.wayfarer.org. trilug.org name server ns.trilug.org. But, if you do a "whois trilug.org" you actually get 3 name servers listed (hmm... perhaps we should fix that!). Anyway, that's what an "authoritative" server is. -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc
