mbhh
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DNS lookup seems to have a timeout problem - Windows 2000 Server
Having some problems getting dns resolution of some domains - I think it is a timeout issue, as these particular domains are slow to respond.
On the server, nslookup for a domain xyz works ONLY when the ISP dns server is explicitly stated, AND only after the timeout has been set fairly high.
I think the dns setup is otherwise fine on this server, the only place the ISP dns servers are mentioned is in the forward lookup zone.
Any ideas? thanks Mark
On the server, nslookup for a domain xyz works ONLY when the ISP dns server is explicitly stated, AND only after the timeout has been set fairly high.
I think the dns setup is otherwise fine on this server, the only place the ISP dns servers are mentioned is in the forward lookup zone.
Any ideas? thanks Mark
ASKER
I added the ISP dns servers into the Forwarders tab of the server properties and it all came right. Does this make good sense or is it just a hack?
no this is the way it's sapposed to be done
Your local WS look at your DNS server for name resolution, if your server does not know the answer it has to get the info from somewhere (that's where forwarders come in)
---------> WHO IS GOOGLE.COM ---------> ---------> WHO IS GOOGLE.COM --------->
CLIENT YOUR DNS YOUR ISP DNS
<-------------- 72.14.207.99 <-------------- <-------------- 72.14.207.99 <--------------
eb
Your local WS look at your DNS server for name resolution, if your server does not know the answer it has to get the info from somewhere (that's where forwarders come in)
---------> WHO IS GOOGLE.COM ---------> ---------> WHO IS GOOGLE.COM --------->
CLIENT YOUR DNS YOUR ISP DNS
<-------------- 72.14.207.99 <-------------- <-------------- 72.14.207.99 <--------------
eb
ASKER
Yes but how come it was already working for most domains without the forwarders tab settings?
Why did not the ISP dns servers in the Forward Lookup zone not work for all lookups?
Why did not the ISP dns servers in the Forward Lookup zone not work for all lookups?
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ASKER
That's odd - the server was installed afresh (by me) only 3 months ago. I thought I had set the dns up correctly there and then, though I could easily have missed the forwarders.
Therefore from what you say ebjers, the forwarders tab MUST have been set up earlier on (for the cache to gain lookup info) and MUST have been recently removed?
Therefore from what you say ebjers, the forwarders tab MUST have been set up earlier on (for the cache to gain lookup info) and MUST have been recently removed?
http://www.windowsitpro.com/Article/ArticleID/41229/41229.html
http://www.windowsitpro.com/Article/ArticleID/41229/41229.html
eb