DNS forwarder

Shahir Thottathil 1 Reputation point
2021-08-15T16:00:33.527+00:00

Dear Team,

I have one question about the DNS forwarder port. In my situation, all port from my DNS server is blocked and client not able to communicate with the internet.
After my troubleshoot, I found DNS forwarder is configured and can't resolve the public DNS server. Then I checked with the security team and confirmed they blocked all the ports.
Now the question is which PORT should I open to the internet from my DNS server to communicate with the PUBLIC DNS Server.

I know 53 is DNS port used to communicate, but i just need to confirm with the expert whether i require to open any other ports.

Thanks and Regards,
Sha

Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. Anonymous
    2021-08-15T19:38:45.77+00:00

    You'll find port requirements listed here.
    https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/config-firewall-for-ad-domains-and-trusts

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