If the requested information is not available, then it forwards the query to another DNS server. Each DNS server queries its own database to find an address corresponding to a record. Several DNS servers are used in the process. These SRV records are used to identify the domain controllers also.Ī single DNS server cannot help in resolving a resource record. Service records allow a client in an active directory environment to locate any service it needs such as a printer. The list of services running is maintained in the form of service records (SRV). In the case of Active Directory, DNS maintains a database of services that are running on that network. The reason behind the choice of DNS is that it is highly scalable and it is an internet standard.
DNS namespace is used internet-wide while the Active Directory namespace is used across a private network. It is used on TCP/IP networks and across the internet. Domain Name System (DNS) is a name resolution method that is used to resolve hostnames to IP addresses.