stub resolver timeout

Barry Margolin barmar at bbnplanet.com
Mon Jan 3 22:27:55 UTC 2000


In article <20000103155612.G25372 at washingt.cospo.osis.gov>,
Joseph S D Yao  <jsdy at cospo.osis.gov> wrote:
>On Mon, Dec 13, 1999 at 11:22:14AM -0500, j j wrote:
>> Another question regarding stub resolvers ...
>
>What are they?  I have never heard of them.

This is a standard term in DNS.  See p.26 of DNS&BIND, or Section 5.3.1 of
RFC 1034.

A stub resolver is a resolver that relies on use of a DNS server that will
perform recursive queries on its behalf.  It has no knowledge of root
servers or the DNS hierarchy -- it just sends queries to a preconfigured
set of servers and expects them to reply with the final answer.

A non-stub resolver will perform iterative queries by itself.

Almost all resolvers are stub resolvers.

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.



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