A domain controller provides DNS for a domain. A domain controller stores the zones and records for the domain, and provides DNS services for the domain. When a client computer tries to resolve a name in the domain, the client computer contacts the domain controller for the answer. The domain controller then queries one or more DNS servers for the answer.
If the client computer is connected to the Internet, the DNS server for the domain may be provided by a DNS provider, such as Google. If the client computer is not connected to the Internet, the domain controller may provide the DNS server for the domain.
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Domain controller (DC) and DNS are both essential for the proper functioning of a network. However, there are some key differences between the two. Domain controller functions as the primary repository for Active Directory information and acts as the authoritative source for domain name resolution.
Domain name services (DNS) are a critical part of the internet infrastructure. Domain name servers (DNS) are the servers that handle the requests for domain names and IP addresses. A DNS server can provide information about the name servers that have the appropriate records for a particular domain name.
Ensure DNS is configured on all domain controllers in your Active Directory forest. DNS is required in order to resolve domain name references to IP addresses. If DNS is not configured on a domain controller, Active Directory cannot resolve domain name references.
DNS Needs to Be on a Domain Controller
There are a few reasons why DNS needs to be on a domain controller. First and foremost, DNS is a critical service that is used to resolve domain names into IP addresses. If DNS is not running on a domain controller, then users will not be able to access their domain names or other resources.
Domain controllers are the backbone of any DNS infrastructure. They are responsible for storing and managing the DNS database, and for providing name resolution services for clients on the network. A domain controller can also act as a DHCP server, DNS proxy, and NTP server.
