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In this part: 16: Understanding Logon and Authentication . . . . . . . . . . . . . 639 17: Managing Authorization and Access Control . . . . . . . . . . . 683 18: Using Encrypting File System . . . . . . . . . . . . . . . . . . . . . . . . . 747 19: Implementing TCP/IP Security . . . . . . . . . . . . . . . . . . . . . . . . 803 20: Implementing Security for Mobile Computers . . . . . . . . . . 839 21: Wireless Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 855 22: Implementing Windows Firewall . . . . . . . . . . . . . . . . . . . . . . 873

Now that you understand what a VPN is, it is time to configure Windows XP to use a VPN connection. Think of a VPN connection as similar to a dial-up connection. They both allow access to remote resources. In the case of the VPN, an existing connection to the Internet is utilized rather than making a direct connection to a modem at the remote location. To make a VPN connection, the steps are almost the same as those used to create a dial-up connection.

Managing users access to the network and the resources on it is vital to protecting your organization s sensitive information. This part discusses strategies for authenticating users and controlling their access to network resources, as well as strategies for securing computers and files on your network.

If you assign IP addresses statically, you need to have the following information for each client:

2 Click Next on the Welcome screen, and then select the Connect To The Network At My Workplace option. Click Next.

The IP address and subnet mask for each network adapter installed on each client computer The IP address for the default gateway for the local subnet Whether the client is using DNS or WINS The name of the client computer s DNS domain and the IP addresses for the DNS or WINS servers The IP address for the proxy server (if there is one)

this.textBox1.Text = HelloWorld ;

It is recommended that you assign static IP addresses to servers and dynamic ones to client computers. However, there are exceptions that might require you to assign static addresses to computers running Windows XP Professional. For example, a computer that runs an application that has the IP addresses hard-coded into it requires a static address.

For more information about TCP/IP, DHCP and DNS, see Configuring TCP/IP on the companion CD included with this book.

3 Choose Virtual Private Network Connection and click Next. 4 Enter a name for the connection and click Next. 5 On the Public Network page, you can choose to have Windows automatically

Internetwork Packet Exchange (IPX) is the network protocol used by legacy NetWare computers to control addressing and routing of packets within and among LANs. Windows XP Professional computers can connect to NetWare servers using Client Service for Netware. Windows XP Professional includes NWLink and Client Service for NetWare to transmit NetWare Core Protocol (NCP) packets to and from legacy NetWare servers. Note

Although TCP/IP is used on some Novell NetWare based networks, Client Service for NetWare does not support it.

NWLink and Client Service for NetWare provide access to file and print resources on NetWare networks and servers that are running either Novell Directory Services (NDS) or bindery security. Client Service supports some NetWare tools applications. It does not support IP, including NetWare/IP. You can install either Client Service for NetWare or the current Novell Client, but not both. Note, however, you cannot use Novell Client to connect a computer running Windows XP

dial the connection so that the VPN connection can be established, or you can manually dial the connection as needed. If you are using a broadband connection that is always connected, select Do Not Dial The Initial Connection. If you select Automatically Dial This Initial Connection, you should choose the connection that will be used. Make your selection and click Next.

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