Dns Unknown Error While Validating Server
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Dns An Unknown Error Occurred While Validating The Server
validating the server dns Windows Server > Windows Server General Forum Question 0 master dns server validation error Sign in to vote I am getting this error on the forwarder on my dc/DNs server which has
Disable Edns0
a forwarder. Other DNS/DC servers have the same ip and are not getting the error validating the dns forwarder. only this one which is a 2008r2 dc just promoted. any idea? dns validation error please try later Wednesday, March 16, 2011 5:44 PM Reply | Quote Answers 0 Sign in to vote Hello, please check with: http://forums.techarena.in/windows-server-help/1128621.htmBest regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Marked as answer by Arthur_LiMicrosoft contingent staff, Moderator Monday, March 21, 2011 2:40 AM Wednesday, March 16, 2011 6:30 PM Reply | Quote the server with this ip is not authoritative for the required zone 0 Sign in to vote Please make sure that there is no firewall / router that is blocking DNS traffic. The problem persists if you disable EDNS0? This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Marked as answer by Arthur_LiMicrosoft contingent staff, Moderator Monday, March 21, 2011 2:40 AM Wednesday, March 16, 2011 7:55 PM Reply | Quote All replies 0 Sign in to vote Hello, please check with: http://forums.techarena.in/windows-server-help/1128621.htmBest regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Marked as answer by Arthur_LiMicrosoft contingent staff, Moderator Monday, March 21, 2011 2:40 AM Wednesday, March 16, 2011 6:30 PM Reply | Quote 0 Sign in to vote Please make sure that there is no firewall / router that is blocking DNS traffic. The problem persists if yo
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Windows https://social.technet.microsoft.com/Forums/windowsserver/en-US/73265f68-170b-4891-92eb-b21fb9f53056/an-unknown-error-occurred-while-validating-the-server-dns?forum=winservergen 2012 can't validate forwarders without a root zone? up vote 11 down vote favorite 1 (Disclaimer: I am not a Windows DNS admin. I do have a decent amount of DNS experience under my belt though, and this is not making any sense. I am working closely with the admins responsible for these devices and can get tests performed as needed.) We have run into an issue where we cannot add conditional http://serverfault.com/questions/693670/windows-2012-cant-validate-forwarders-without-a-root-zone forwarders that point to BIND nameservers under Windows Server 2012. Adding the IP address of the server results in a validation error: An unknown error occurred while validating the server. Looking at the query log on the BIND server, we found something rather interesting: the Windows DNS server was querying for . IN SOA, i.e. the SOA record for the root nameservers. No query for example.com. IN SOA at all. It attempts to query for root authority and doesn't continue when it receives a response of REFUSED. client 192.168.203.20#59067 (.): query: . IN SOA - (192.168.208.201) client 192.168.203.20#50553 (.): query: . IN SOA - (192.168.208.201) client 192.168.203.20#55468 (.): query: . IN SOA - (192.168.208.201) Madness. To humor it, we reproduced this problem in the lab. I downloaded a copy of the root zone and configured a . zone (commenting out my root hints), and lo and behold, this error no longer occurs. I really don't get this. I'm providing an authoritative nameserver that shouldn't have to provide answers to . SOA, and as matters stand I'm going to have to add this zone to all of our production servers just to play nicely with Windows 2012. In my experience, a forwarder should only be concerned with whether or not the target
takes a few minutes. Join Now It looks like this problem started a week ago. I can't really pin point any changes that https://community.spiceworks.com/topic/369169-dns-servers-aren-t-communicating-correctly would have affected this short of windows updates. I have been getting complaints from my staff that web browsing has been drastically slower. I find that when I statically assign a google DNS things start working fine. I am getting error messages in my event logs randomly stating my DNS server is unable to create a resource record: The DNS server was unknown error unable to create a resource record for 08d0c81f-d338-4790-9f7b-54bc20441616._msdcs.DOMAIN.com. in zone DOMAIN.com. The Active Directory definition of this resource record is corrupt or contains an invalid DNS name. The event data contains the error. When I attempt to ping one DNS server to another it looks like it is resolving an IPv6 address instead of the IPv4. I'm at a loss where dns unknown error to start investigating. When I attempt to view the NameServers from the DNS properties window I get "an unknown error has occurred when trying to validate the server". So spiceheads, where to start? Reply Subscribe RELATED TOPICS: How many DNS servers are too many? Best practice for DNS servers? Any reason to have multiple DNS servers? 5 Replies Datil OP Helpful Post Ryan_B Aug 12, 2013 at 8:15 UTC Here is a good starting point: http://community.spiceworks.com/education/projects/Troubleshooting_DNS_Problems
Also, if all else fails, I would recommend that you contact Microsoft Support for assistance. They offer support at a flat fee (between $250 and $300 I believe) and will work until they resolve the problem. Just something to keep in your back pocket. 0 Jalapeno OP Helpful Post AdmiralBeamish Aug 12, 2013 at 8:16 UTC Have you tried restarting the service? 0 Cayenne OP mhache Aug 12, 2013 at 8:23 UTC I just restarted the services. When I run NSlookup on either server they pull eachother up So NSlookup on one server resolves the