The System Development Network(SDN), a computer network connecting research and development organizations in Korea, provides services such as electronic mail, file transfer, virtual terminal, and news. The purpose of SDN is to assist software and system development, and to connect the research and development community in Korea with overseas organization via a network. In this environment, we need a name server which supplies the services to make users and resources identify each other easily and efficiently. This thesis studies the naming and addressing schemes used in computer networks, compares the various name servers, discusses considerations that lead to the SDN name server design. It also proposes a bilingual hierarchical name server.