Active Directory and DNS

We know what Active Directory is, but we don't know how a client would find it. Furthermore, we don't know how a machine would find it or how a domain controller creation process can find the Active Directory to join. To answer that question, we have to understand how Active Directory and DNS are related.

To establish a domain in Windows 2000, a DNS server with modern capabilities must be available. Microsoft provides its own DNS server if the right flavor of DNS is not already in place. The DNS must support SRV records (RFC 2052), should support dynamic update (RFC 2136), and should support incremental zone transfer (RFC 1995). In practice, if the DNS server supports SRV records, Active Directory can be made to interoperate ...

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