Dynamic DNS
Dynamic DNS (DDNS) is specified in RFC 2136—Dynamic Updates in the Domain Name System (DNS UPDATE). It is the foundation of a successful Active Directory Service implementation. As I have discussed, DNS is used to resolve a name to an IP address, or vice versa, using a defined hierarchical naming structure to ensure uniformity. Dynamic DNS takes that architecture to the next level.
Dynamic DNS integrates DHCP and DNS, as described in RFC 2136. Every time a machine requests a new address or renews its address, it sends an option 81 and its fully qualified name to the DHCP server and requests the DHCP server register an entry in the reverse lookup DNS zone on its behalf. The DHCP client also requests an entry in the forward lookup zone ...
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