tailieunhanh - Networking: A Beginner’s Guide Fifth Edition- P64

Networking: A Beginner’s Guide Fifth Edition- P64:I have run into many people over the years who have gained good even impressive working knowledge of PCs, operating systems, applications, and common problems and solutions. Many of these people are wizards with desktop computers. | Chapter 19 Understanding Other Windows Server 2008 Services 297 298 Networking A Beginner s Guide One of the strengths of Windows Server 2008 is that it can perform many functions and fill many roles. Not only is Windows Server 2008 a powerful and effective file server and print server but it s also extremely capable of performing many other tasks right out of the box. Chapters 16 and 17 explained how to set up Windows Server 2008 as a basic file server and print server and how to administer Windows Server 2008 on a daily basis. To get the most out of Windows Server 2008 you need to know what additional services are available how they work and what they do. This chapter introduces some of the other services that come with Windows Server 2008. You can find detailed instructions for implementing these services in a book devoted to Windows Server 2008. Exploring DHCP If you ve been involved with computers for long you probably remember what it was like to manage TCP IP addresses manually and you might still do this now . You needed to visit every computer on the network to set its TCP IP address manually. You also had to keep track of which computers used which addresses because you had a limited number of addresses with which to work. Plus as you probably know when two computers on a network try to use the same TCP IP address trouble quickly follows and you must spend time sorting out these problems. As discussed in Chapter 8 the Dynamic Host Configuration Protocol DHCP saves the day in such situations. A DHCP server is a computer on the network that keeps track of which TCP IP addresses are available and parcels them out to computers and other devices that boot up and request a TCP IP address from the server. With a DHCP server you don t need to worry about address conflicts or renumbering the addresses used on computers if your TCP IP address range ever changes. NOTE Because TCP IP is the default protocol for Windows Server 2008-based networks and because Windows .

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