Is going to "http://somewhere.com." faster?

Mark_Andrews at isc.org Mark_Andrews at isc.org
Mon Aug 2 02:38:54 UTC 1999


	It is no longer "normal" behaviour and has not been for several
	year.

	If your resolver has this behaviour it contains a significant
	security flaw.

	Mark

> This is normal behavior of the resolver. And yes if you append a dot its 
> faster.
> 
> 
> >From: yong321 at yahoo.com
> >To: comp-protocols-dns-bind at moderators.isc.org
> >Subject: Is going to "http://somewhere.com." faster?
> >Date: Thu, 29 Jul 1999 16:20:55 GMT
> >
> >I'm learning DNS. At the nslookup> prompt, I "set debug". Then query
> >"www.uh.edu" for University of Houston (I work at Houston). It first
> >tries to find "www.uh.edu.mycompany.com" and gets 0 answers. Then it
> >tries to find "www.uh.edu" and finds it. Now if I type "www.uh.edu."
> >(with the appending dot), it finds it with one attempt. This is easy to
> >understand.
> >
> >Then I think if I go to the homepage of any Web site (not inside the
> >site), I can append a dot to the host name to speed up DNS lookup a
> >little bit. So in the browser, instead of typing the URL "www.uh.edu"
> >(or "http://www.uh.edu") I type "www.uh.edu.". Please comment. Thanks.
> >
> >Yong
> >Email:yong321 at yahoo.com
> >
> >
> >Sent via Deja.com http://www.deja.com/
> >Share what you know. Learn what you don't.
> >

> 
> ______________________________________________________
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> 
> 
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org


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