Disk2VHD DC DNS Issue

Jim Goyette 21 Reputation points
2021-10-31T21:30:55.667+00:00

I have migrated a WIndows Server 2008 DC to Hyper-V and everything works except DNS. Initial boot of VM used DHCP and when I change the IP address back to what it was before migration I lose internet connectivity. DNS under the DHCP IP address boot only uses IPv6 not the IPv4 DHCP address (properties in DNS Manager). How do I "fix" DNS to use the static IP address the server previously had? FYI, This is a secondary DC / DNS machine and could be demoted if that is the solution.

Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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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. Dave Patrick 426.1K Reputation points MVP
    2021-11-01T01:27:07.863+00:00

    The much safer / cleaner method to virtualize a domain controller is to stand up a new one from clean installation media in virtual environment, patch fully and migrate. P2V methods are a very risky last resort.

    I'd use dcdiag / repadmin tools to verify health correcting all errors found before starting any operations. Then stand up the new 2008, patch it fully, license it, join existing domain, add active directory domain services, promote it also making it a GC (recommended), transfer FSMO roles over (optional), transfer pdc emulator role (optional), use dcdiag / repadmin tools to again verify health, when all is good you can decommission / demote old one and re-ip the new one if necessary.

    --please don't forget to upvote and Accept as answer if the reply is helpful--

    2 people found this answer helpful.