Abstract

This chapter provides an overview of the Domain Name Space. Domain Name System (DNS) is a distributed database that resolves host names to IP addresses. Windows NT 4.0 DNS servers were considered add-on products. All previous Microsoft Networks were based on the NetBIOS naming standard. Windows Internet Name Servers (WINS) provided NetBIOS name-to-IP-address resolution. DNS servers were added in the rare event of a WinSock client/server program being implemented. The integration of Active Directory and Dynamic DNS (DDNS) makes DNS services sine qua non in the network infrastructure. Microsoft's stated goal is to eliminate NetBIOS. WINS servers allow NetBIOS clients to dynamically register their NetBIOS names with a WINS server. DDNS allows computers to update their host names dynamically. Dynamic DNS name registration allows administrators to wean their networks from the NetBIOS standard. WINS is included with Windows 2000 to allow downlevel, NetBIOS-based (such as Windows NT 4.0 and Windows 9x) systems to continue working as they did prior to Windows 2000.

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