To do this, run the following command in an administrative Command Prompt window:. If the resolver returns a "Server failure" or "Query refused" response, the zone is probably paused, or the server is possibly overloaded.
You can learn whether it's paused by checking the General tab of the zone properties in the DNS console. If the resolver returns a "Request to server timed out" or "No response from server" response, the DNS service probably is not running.
Try to restart the DNS Server service by entering the following at a command prompt on the server:. If the issue occurs when the service is running, the server might not be listening on the IP address that you used in your nslookup query. On the Interfaces tab of the server properties page in the DNS console, administrators can restrict a DNS server to listen on only selected addresses.
If the DNS server has been configured to limit service to a specific list of its configured IP addresses, it's possible that the IP address that's used to contact the DNS server is not in the list. You can try a different IP address in the list or add the IP address to the list.
In rare cases, the DNS server might have an advanced security or firewall configuration. If the server is located on another network that is reachable only through an intermediate host such as a packet filtering router or proxy server , the DNS server might use a non-standard port to listen for and receive client requests.
Therefore, if the DNS server uses any other port, nslookup queries fail. If you think that this might be the problem, check whether an intermediate filter is intentionally used to block traffic on well-known DNS ports. Check whether the server that returns the incorrect response is a primary server for the zone the standard primary server for the zone or a server that uses Active Directory integration to load the zone or a server that's hosting a secondary copy of the zone.
The problem might be caused by user error when users enter data into the zone. Or, it might be caused by a problem that affects Active Directory replication or dynamic update. You can determine which server is the primary server by examining the properties of the secondary zone in the DNS console. If the name is correct on the primary server, check whether the serial number on the primary server is less than or equal to the serial number on the secondary server.
If it is, modify either the primary server or the secondary server so that the serial number on the primary server is greater than than the serial number on the secondary server. On the secondary server, force a zone transfer from within the DNS console or by running the following command:.
Difficulty Level: Beginner. Jonathan Miller. Spiceworks 15 years in IT. Main Areas of Contribution:. Huw This person is a verified professional. Verify your account to enable IT peers to see that you are a professional.
Spice 6. GoogleDrummer This person is a verified professional. Spice 3. Spice 1. I'll explain why in a moment Scavenging will now magically work!
YMMV of course, you may not want to prune with a flamethrower :. KrasiPetrov This person is a verified professional. Good read. Thank you very much for sharing. Excellent tutorial. Spice 0.
Users who spiced up this comment. Did you ever wonder how this DNS Client works? So here I am with a simple explanation of how this DNS Client works using Windows external command utility called nslookup. I want to resolve various DNS resource records for the domain gopalthorve. We got the name servers ns Type nslookup www. The last line of above command output Aliases: www. This command returns all TXT records for gopalthorve.
If the hostname belonged only to the LAN of the VPN, it would effectively mean that the name would be revealed to the public network. This condition is also known as DNS Leak. Under some conditions or due to an incorrect configuration, Windows may stick to the DNS server of only a specific connection and ignore all other DNS servers.
It may prevent the client from resolving hostnames that are serviced only by a specific DNS server e. Another problem may arise when a single hostname resolves to different IP addresses inside and outside the LAN. All problems of DNS resolution through multiple network interfaces can be easily solved with YogaDNS, a small software tool with an easy yet powerful UI that can transparently intercept DNS queries from apps and system resolver and process them according to user-defined rules.
With YogaDNS you can:. Below is an example of two resolutions: test. It is clear that Windows tries to resolve all the names through both interfaces at the same time. Thus, queries for test. As described above in this article, this situation is suboptimal and may lead to security and performance problems.
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