DNS is a critical part of the infrastructure of a Windows network. When a Domain Controller is demoted, the DNS server that it was hosting is automatically taken down.
If the domain is not configured to use a DNS server, or if the DNS server is down, clients may not be able to resolve domain names.
Although the DNS server is down, clients may still be able to resolve domain names if the DNS server for the child domain is operational. In the event that the DNS server for the child domain is not operational, a secondary DNS server may be used.
It is important to note that the demotion of a Domain Controller does not remove the DNS server from the network. The DNS server for the child domain will still need to be installed and configured if the domain is to be used.
4 Related Question Answers Found
The answer to this question is a bit complicated. Disable DNS on a domain controller means that the domain controller will no longer respond to DNS requests. This can be a problem if you are using DNS for name resolution.
Many administrators are removing DNS delegation when demoting domain controllers. However, this may not be the best practice. When a domain controller is demoted, it no longer has the authority to resolve DNS names.
The DNS server on a domain controller is the authoritative source for resolving domain names. If the DNS server is not functioning properly, users may not be able to access resources on the network or resolve domain names. There are a number of ways to fix a DNS server that is not functioning properly.
There is no one-size-fits-all answer to this question, as the answer will vary depending on the specific circumstances of your situation. However, in general, it is generally not recommended to reinstall DNS on a domain controller. There are a few reasons for this.
