Zero Configuration (Zeroconf)
Zero Configuration (Zeroconf) provides a means of networking computer systems together without requiring specific network configuration. This approach is becoming increasingly necessary as we use a larger number and wider variety of computing devices in a networked scenario.
There are three basic requirements for a system to support Zeroconf. First, the system must be capable of assigning itself an IP address without the need for a DHCP server. Second, the system must be capable of resolving the hostname of another system to an IP address without the use of a DNS server. Finally, a system must be capable of locating or advertising services on the network without a directory services system such as Microsoft's Active Directory or Novell Directory Services. Currently, Zero Configuration is supported, with additional software, by Mac and Windows operating systems, as well as by Linux and UNIX.