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. DNS, on the other hand, is a service that enables computers on a network to find the addresses of other systems.
DCs also provide some of the features of DNS, such as querying for the A, AAAA, and PTR records for a domain name.
Despite their differences, both DCs and DNS servers are important parts of a network. For example, if a DC fails, the domain controllers that are in its domain can still function, while DNS servers may not be able to provide the same level of service.
In addition, DCs are used to install and manage updates to Active Directory and to back up the directory.
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DNS servers are critical for both the internal operation of a company and its relationship with the internet. In order to maintain its internet presence, a company will need to maintain a DNS server. However, many companies do not have a dedicated DNS server.
Domain Name System (DNS) is a hierarchical naming system for computers, consisting of a root zone (named in honor of C.D. Net, the company that developed it) and one or more divisions, such as second level domains (SLDs), hostnames, and domain names. It is used to translate human-readable domain names, such as www.
Domain name system (DNS) is a hierarchical naming system for computers, phones, and other devices. DNS loads webpages and other documents from a central server, rather than from the individual devices. A domain name is a unique name assigned to a particular organization or company.
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 is a system that allows computers to communicate with each other by referring to DNS servers. These servers can provide information about the names and addresses of other computers on the Internet. Domain controllers control DNS.
Domain controllers should have DNS enabled and configured to use the default domain name servers. DNS is a critical service that allows computers on a network to resolve domain names to IP addresses. By default, domain controllers use the DNS server located on the same network as the computer.
Domain controllers provide DNS services for their respective domains. By default, the DNS servers for a domain are registered with the DNS servers for the domain controller. When you add a new server to your domain, the new server registers itself with the domain controller as the DNS server for the domain.
DNS (Domain Name System) is a hierarchical database of the top level domains (TLDs) and the second level domains (SLDs) registered with the Internet Assigned Numbers Authority (IANA). DNS is used for resolving hostnames to IP addresses. When a user types in a URL, their computer queries DNS for the IP address associated with that URL.
