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DNS and WINS

In Chapter 2 and the chapters in Part III, you learned that Active Directory domains are modeled on Internet domains. You also learned that Windows 2000 networks rely on TCP/IP as the network protocol of choice. In order to resolve Windows 2000 domain controllers and many other hosts running Windows 2000 services, you need to fully understand and be able to configure Domain Name Service (DNS). This chapter explains the services you can use to create DNS. It also covers Windows Internet Name Service (WINS) name servers, and includes coverage of Dynamic DNS (DDNS), client configuration, and related topics | DNS and WINS In Chapter 2 and the chapters in Part III you learned that Active Directory domains are modeled on Internet domains. You also learned that Windows 2000 networks rely on TCP IP as the network protocol of choice. In order to resolve Windows 2000 domain controllers and many other hosts running Windows 2000 services you need to fully understand and be able to configure Domain Name Service DNS . This chapter explains the services you can use to create DNS. It also covers Windows Internet Name Service WINS name servers and includes coverage of Dynamic DNS DDNS client configuration and related topics. Overview of Domain Name Services The Internet comprises many millions of devices including computers routers printers and other devices and each device is called a node. Each node requires a unique IP address to differentiate it from others and allow traffic to be routed to and from the node. Intranets also can employ the TCP IP protocol and require that each node have a unique address although in the case of an intranet these IP addresses can come from a non-public reserved address space such as 192.168.0.x. Nodes on the Internet must have a unique public IP address. IP addresses are difficult for most people to remember and their sheer number makes it impractical to try to do so. The Domain Name Service DNS overcomes this problem by enabling users to work with names rather than addresses. In effect DNS provides a means of mapping names to addresses. Rather than typing 207.25.71.9 to connect to CNN s Web site for example you connect with your browser to www.cnn.com. DNS takes care of translating www.cnn.com into the appropriate IP address. Mapping a name to an IP address is called name resolution. In This Chapter Overview of the Domain Name Service DNS Microsoft Domain Name Services Configuring Subdomains and Delegation DNS and Active Directory Dynamic DNS Windows Internet Name Service WINS Configuring Windows 2000 Clients for DNS and WINS Using Hosts and .