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Windows Server Forum / Windows 2000 / DNS / July 2005DNS Server Search List Behavior
Can someone confirm or deny that the client will: Use the first DNS server defined in the list until it becomes unavailable then moves to the next one in the list? It will continue to use this next server until it too becomes unavailable then moves to the next one (or back to the first one if only two are specified) in the list? It continues in this way even if the previous server becomes available after it moves to the next? Regards, John > Can someone confirm or deny that the client will: > > Use the first DNS server defined in the list until it becomes > unavailable then moves to the next one in the list? Yes. > It will continue to use this next server until it too becomes > unavailable then moves to the next one (or back to the first one if > only two are specified) in the list? Yes, this is true too, but if TCP/IP is reset it will revert back. Although IIRC, the system will reset the DNS server list itself after a period of time. I believe there is a KB on this behavior, I guess I'm not using the right search criteria, I can't seem to find it.  SignatureBest regards, Kevin D4 Dad Goodknecht Sr. [MVP] Hope This Helps =================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue, to respond directly to me remove the nospam. from my email address. =================================== http://www.lonestaramerica.com/ =================================== Use Outlook Express?... Get OE_Quotefix: It will strip signature out and more http://home.in.tum.de/~jain/software/oe-quotefix/ =================================== Keep a back up of your OE settings and folders with OEBackup: http://www.oehelp.com/OEBackup/Default.aspx =================================== >> It will continue to use this next server until it too becomes >> unavailable then moves to the next one (or back to the first one if [quoted text clipped - 4 lines] > a period of time. I believe there is a KB on this behavior, I guess > I'm not using the right search criteria, I can't seem to find it. Here you go Kevin: DNS Name Resolution Client Side Behavior: (Page down to Figure 6.7) http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-u s/Default.asp?url=/resources/documentation/Windows/2000/server/reskit/en-us/cnet /cncf_imp_absq.asp 286834 - The DNS Client Service Does Not Revert to Using the First Server in the List (see 245437 for reg entry to disable client caching to reset list): http://support.microsoft.com/?id=286834 Querying DNS Servers - how the resolver service works: http://www.microsoft.com/technet/treeview/default.asp?url=/technet/prodtechnol/w inxppro/reskit/prjj_ipa_bsmz.asp It's all explained in the DNS White paper (works for Win2000 and Win2003) See page 38: http://www.microsoft.com/windows2000/techinfo/howitworks/communications/nameadrm gmt/w2kdns.asp SignatureRegards, Ace Please direct all replies ONLY to the Microsoft public newsgroups so all can benefit. This posting is provided "AS-IS" with no warranties or guarantees and confers no rights. Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP Microsoft Windows MVP - Windows Server - Directory Services Infinite Diversities in Infinite Combinations. ================================= >> a period of time. I believe there is a KB on this behavior, I guess >> I'm not using the right search criteria, I can't seem to find it. > Here you go Kevin: <snippage> 100% Correct Ace, and just to add my two cents, the query timeout can be fine-tuned if needed by acting on a registry key as you can see here http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-u s/Default.asp?url=/resources/documentation/Windows/2000/server/reskit/en-us/rege ntry/96406.asp (short URL http://tinyurl.com/6zkqd) and btw the entry documentation also explains (were, more or less) how the resolution process is carried on by the client Regards Signature* ObiWan Microsoft MVP: Windows Server - Networking http://www.microsoft.com/communities/MVP/MVP.mspx http://italy.mvps.org DNS "fail-safe" for Windows clients. http://www.ntcanuck.com Newsgroups and forums news://news.ntcanuck.com http://forums.ntcanuck.com 408+ XP/2000 tweaks and tips http://www.ntcanuck.com/tq/Tip_Quarry.htm >>> a period of time. I believe there is a KB on this behavior, I guess >>> I'm not using the right search criteria, I can't seem to find it. [quoted text clipped - 13 lines] > > Regards Thanks Obi, that was the other one I couldn't find! Ace Folks, Thank you very much. I've learned a thing or two... Regards, John >>>> a period of time. I believe there is a KB on this behavior, I guess >>>> I'm not using the right search criteria, I can't seem to find it. [quoted text clipped - 17 lines] > > Ace > In news:%2374g3xwjFHA.3936@TK2MSFTNGP10.phx.gbl, > Kevin D. Goodknecht Sr. [MVP] <admin@nospam.WFTX.US> stated, which I [quoted text clipped - 27 lines] > See page 38: > http://www.microsoft.com/windows2000/techinfo/howitworks/communications/nameadrm gmt/w2kdns.asp You see, I knew it existed. I guess it was one of the many very long days I've had lately. Thanks Ace. SignatureBest regards, Kevin D4 Dad Goodknecht Sr. [MVP] Hope This Helps =================================== When responding to posts, please "Reply to Group" via your newsreader so that others may learn and benefit from your issue, to respond directly to me remove the nospam. from my email address. =================================== http://www.lonestaramerica.com/ =================================== Use Outlook Express?... Get OE_Quotefix: It will strip signature out and more http://home.in.tum.de/~jain/software/oe-quotefix/ =================================== Keep a back up of your OE settings and folders with OEBackup: http://www.oehelp.com/OEBackup/Default.aspx =================================== > You see, I knew it existed. I guess it was one of the many very long > days I've had lately. > Thanks Ace. It's always a pleasure Kevin! Ace |
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