Any help in testing what might be wrong here? EDIT: forgot to add that before enabling manual IPv6 static config on some member clients and domain controllers, and enabling DNSes to listen to IPv6 interfaces, there was no time out in nslookup from clients ther eis still no time out when nslookup is performed directly on domain controllers.
Tuesday, April 15, PM. Wednesday, April 16, AM. OK, I think I am on to something. I guess I need to run metadata cleanup after all? Hi, Good to hear that and thanks for sharing. Have a good day! Server Fault is a question and answer site for system and network administrators. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.
I have a network set up, and recently replaced our two Windows Server R2 domain controllers with two Windows Server R2 domain controllers. Both are VMs, each on a different physical machine. Both of my domain controllers have DNS server enabled, and both are configured to use five different external Forwarders and to use root hints if no forwarders are available.
Since the upgrade, we now experience DNS timeouts twice a day these timeouts occur on both the dns server itself, and clients. At the moment the pattern seems to be at around am the dns timeouts happen, and then again at the end of the day. A reboot of the main primary DNS server resolves the issue.
It seems that doing a tracert 8. It looks like nslookup is appending your own domain name to the end of the query -- this probably won't resolve on anyone's DNS, so is passing up the chain of forwarders which shows as a timeout for each forwarder it hits. Try querying www. This can cause issues if the application that has requested the DNS resolution has an application resolution timeout lower than this value.
The only way to have this server queried earlier will be to set it in the first three positions. Shall the client have more than one NIC active with different DNS servers configured on them, the client resolution behavior is slightly different. Skip to main content. This browser is no longer supported.
Download Microsoft Edge More info. Verify your account to enable IT peers to see that you are a professional. Is this a new issue or a recent issue. Anything changed recently? Martin This person is a verified professional. Hi Aaraon! Many thanks for your response. Hi Martin! Forwarders are defined here. Best regards, JJ.
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