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Troubleshooting (continued) Once this is done, standard Internet traffic will be routed out using the local network s default gateway, and the VPN connection will still be used for traffic to and from the private network.

Part III:

Microsoft Windows XP Professional assures security by using the following processes:

Just as you can allow incoming connections on your Windows XP computer, you can also configure Windows XP to accept VPN connections from VPN clients. Basically, this process works the same as allowing incoming connections. Follow these steps:

Authentication, which verifies the identity of something or someone Authorization, which allows you to control access to all network resources, such as files and printers

11. Click OK to start replacing all occurrences of textBox1 with tbMessage. You should see a dialog box that will give you a preview of all the changes that will be made by refactoring. The upper section shows you where the string was found, and the bottom portion shows you what the change will look like if applied to the selected item. The check boxes allow you to select only the changes you really want to perform. One neat feature is that they are organized by type of change: one for the code elements, one for the comments, and finally one for the strings. Look at the top of Figure 5-18 to see the Preview Changes dialog box s upper window completely scrolled, and look at the bottom of Figure 5-18 for the first selected change preview.

Authentication takes place all around us. For example, you are required to authenticate your identity and purpose when crossing international borders or completing business transactions. Similarly, in Windows, the identity of a user or computer must be authenticated before the user or computer has access to files, folders, and applications. The following discussion provides detailed information about the configuration, management, and maintenance of authentication functions for Windows XP Professional based clients, whether they are stand-alone clients or members of an Active Directory or other network environment.

If you are already familiar with the security model in Microsoft Windows NT version 4.0 and Microsoft Windows 2000, you will recognize many of the features in Windows XP Professional. At the same time, you will also find a number of familiar features that have changed significantly and new features that will improve your ability to manage system security. The following are among the changed security-related features in Windows XP Professional:

1 Open Network Connections and start the New Connection Wizard by clicking the Create A New Connection link.

Everyone membership. The built-in Everyone group includes Authenticated Users and Guests, but it no longer includes members of the Anonymous group.

By default, on Windows XP Professional systems that are not connected to a domain, all attempts to log on from across the network will be forced to use the Guest account. In addition, on computers that are using the simple file sharing security model, the Security Properties dialog box is replaced by a simplified Shared Documents Properties dialog box.

Simple file sharing. Administrative ownership. In Windows NT 4.0 and Windows 2000, all resources such as files and folders that are created by a member of the Administrators group belong to the group as a whole. In Windows XP Professional, these resources by default belong to the individual who creates them. Encrypting File System (EFS) recovery agent. In a Windows 2000 environment, if you attempt to configure an EFS recovery policy with no recovery agent certificates, EFS is automatically disabled. In a Windows XP Professional environment, the same action enables users to encrypt files without a Data Recovery Agent (DRA). In an environment with computers running both Microsoft Windows XP and Windows 2000, an empty

2 Click Next on the New Connection Wizard s opening page. 3 On the Network Connection Type page, select Set Up An Advanced Connection and click Next.

16:

EFS recovery policy turns off EFS on Windows 2000 based computers but eliminates the requirement for a DRA only on Windows XP Professional based computers.