DNS and DHCP

DNS and DHCP are two independently developed but practically interdependent solutions to two separate problems that developed as networks evolved. Both problems were aspects of scalability: small networks can be managed manually, but as a network grows in scale, manageability rapidly diminishes without help. Providing some operational help is the whole point of both DNS and DHCP: help in locating other computers and other devices, and help in knowing the identity of a given device on the network, as well as in changing that identity if the network evolves or the host moves.

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