Tips to fix Microsoft® Windows® DNS not Updating
How to Resolve if your Windows DNS is not updating?
First, let us look at how DNS works. When you visit a website, Windows XP tries to speed up things by placing DNS information about the site in the DNS cache of the system. DNS stores both positive and negative entries. Even if the website is ok to visit there will be DNS error still. Nowadays ISP and Domain name registrar’s update DNS information every 4 hours. Normally both workstations and servers send Dynamic DNS update requests to DNS servers. Workstations register name and address with DNS servers to easily locate the machine. A common problem with the DNS server was cache pollution and settings have to be turned on for solving the issue. Another issue is the incompatibility with BIND configuration files and the lack of support for DNS wildcards. Loose Wildcarding can be enabled to fix this issue. The wildcard record can be created by Dnscmd command line tool.
Following are the tips to fix DNS not Updating issues:
- Names not associated with correct IP
- DHCP Server
- General Solutions
Names not associated with correct IP
In first issue DNS is not updating and it DNS entries shows that names are not associated with correct IP. For solving this user have to first check for errors in the events regarding DNS name registration. Also attach the file output of “ipconfig/all”. Check the IP ping and ensure that names are correct. Now check the DNS Manager in the DNS Server and ensure that you have zone updates and secure updates are enabled.
Check whether DHCP server is configured to auto-register with the IP in the DNS server. For this right-click the DHCP scope and proceed to properties. Enable the DNS dynamic updates in the DNS tab. Set it to “Always Dynamic update”. The other thing to do is to enable Dynamic Updates for clients in the request updates. Also, check whether DHCP server has permission to update DNS records.
When the hosts are not updating the reverse zone, ensure that NIC are configured to register their IP in DNS. This can also be of mismatch between domain controllers. Check whether reverse zone is AD-integrated and Zone Transfers tab and make it allowed. Make it DNS servers listed on the Name Servers tab. Make sure that zone transfers are taking place.
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