nanog mailing list archives
RE: How common is lack of DNS server diversity?
From: Joshua Goodall <joshua () roughtrade net>
Date: Sat, 27 Jan 2001 12:35:55 +0100 (CET)
On Sat, 27 Jan 2001, Roeland Meyer wrote: [snip]
dot root servers should be spread out, as they are authoritative for everything. TLD root servers should also be spread out, they are authoritative for many things. SLD root servers need not be spread out so much, they are authoritative for few things. 3LD root servers don't need to even leave their AS, if the AS is down the servers, they are authoritive for, are probably also down. 4LD root servers ... who cares?
ok, these are obviously generalisations and most DNS-savvy folk would agree with a pinch of salt and a mumble about special cases. e.g. (in particular) {\8}.in-addr.arpa should be considered a TLD in this context.
More interestingly, how many root servers allow recursive lookup?
a quick looping probe shows that none of them do, nor the gTLD servers (phew!) although L.ROOT-SERVERS.NET and H.GTLD-SERVERS.NET are unreachable from my view. Preparing an accurate list of all TLD servers glued in the root zone will take a little longer. joshua
Current thread:
- Re: How common is lack of DNS server diversity?, (continued)
- Re: How common is lack of DNS server diversity? Shawn McMahon (Feb 24)
- Re: How common is lack of DNS server diversity? John Payne (Feb 24)
- Re: How common is lack of DNS server diversity? Charles Scott (Feb 24)
- Re: How common is lack of DNS server diversity? Brian (Feb 24)
- Re: How common is lack of DNS server diversity? Charles Scott (Feb 24)
- Re: How common is lack of DNS server diversity? deeann mikula (Feb 24)
- Re: How common is lack of DNS server diversity? Eric A. Hall (Feb 24)
- Re: How common is lack of DNS server diversity? Charles Scott (Feb 24)
- Re: How common is lack of DNS server diversity? Shawn McMahon (Feb 24)
- RE: How common is lack of DNS server diversity? Joshua Goodall (Feb 24)
- Re: How common is lack of DNS server diversity? bmanning (Feb 24)
- Message not available
- Re: How common is lack of DNS server diversity? Jay R. Ashworth (Feb 24)
- Re: How common is lack of DNS server diversity? Shawn McMahon (Feb 24)
- Re: How common is lack of DNS server diversity? Havard Eidnes (Feb 24)
- Re: How common is lack of DNS server diversity? Greg A. Woods (Feb 24)