qr code c# mvc Lesson 2: Configuring Wireless Networks in Visual C#.NET

Maker QR-Code in Visual C#.NET Lesson 2: Configuring Wireless Networks

Lesson 2: Configuring Wireless Networks
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6. In the New Profile Properties dialog box, click the Security tab and verify that Protected EAP security is selected. Then, click Advanced. In the Advanced Security Settings dialog box, select the Enable Single Sign On For This Network check box. Click OK twice. 7. In the New Vista Wireless Network Policy Properties dialog box, click OK. 8. In the Group Policy Management Console, select Default Domain Policy\Computer Configuration\Policies\Windows Settings\Security Settings\Public Key Policies. 9. In the Details pane, right-click Certificate Services Client Auto-Enrollment, and then click Properties. 10. On the Certificate Services Client Auto-Enrollment Properties dialog box, click the Configuration Model list, and then click Enabled. Select both available check boxes, and then click OK. 11. In the Details pane, right-click Certificate Path Validation Settings, and then click Properties. 12. In the Certificate Path Validation Properties dialog box, select the Define These Policy Settings check box, and then click OK. Exercise 4 Connect to the Wireless Access Point In this exercise, you connect the Boston client computer to the WPA-EAP protected wireless network. You can use any Windows Vista or Windows Server 2008 computer that has a wireless network adapter. Technically, you could use a Windows XP wireless computer, too, but the steps would be different. 1. Connect the Boston client computer to a wired network. Then, run gpupdate /force to update the Group Policy settings. 2. Click Start, and then click Connect To. 3. On the Connect To A Network Wizard page, click the Contoso wireless network, and then click Connect. 4. After the client computer connects to the wireless network, click Close. The authentication was automatic because the client computer has the computer certificate installed. 5. In the Set Network Location dialog box, click Work. Provide administrative credentials if required, and then click OK. 6. Click Close. 7. Open Internet Explorer to verify that you can access network resources. 8. Restart the computer and log back on using the WirelessUser2 account. Notice that the computer automatically connected to the wireless network using computer authentication. This network access allowed the computer to connect to the domain controller and authenticate using the WirelessUser2 account, even though that account did not have previously cached credentials.
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Connecting to Networks
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Exercise 5
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View the Security Event Log
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In this exercise, you view the log entries generated during your authentication attempt. 1. On Dcsrv1, use Server Manager to browse to Diagnostics\Event Viewer\Windows Logs\Security. 2. Browse through the recent events to identify the successful authentication from the client computer and the user account. 3. Using Windows Explorer, open the %SystemRoot%\system32\LogFiles folder, and then double-click the IN<date>.log file. Examine the RADIUS log file and note the lines that correspond to your recent authentication attempts.
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Wireless networks give users flexible connectivity that allows them to connect to the Internet (or, with a VPN, your internal network) from anywhere in your facilities and from coffee shops, airports, hotels, and their homes. 802.11b was the original, widely adopted networking standard. Today, 802.11g and 802.11n are the wireless networking standards of choice because they provide greatly improved performance while still offering backward-compatibility with 802.11b. Private wireless networks should always be protected with security. WEP is compatible with almost every wireless device, but a competent attacker can easily break the security. WPA-EAP (also known as WPA-Enterprise) provides very strong security and easy manageability. Most wireless networks, especially those that provide access to an internal network or to the Internet, operate in infrastructure mode. In infrastructure mode, all wireless communications travel to and from a central wireless access point. For peer-to-peer networking without an infrastructure, you can also create ad hoc wireless networks. You can use a PKI to issue certificates to client computers and your RADIUS servers. These certificates provide a manageable and scalable authentication mechanism well suited to enterprise environments. Windows Server 2008 includes the Active Directory Certificate Services role, which provides an Active Directory-integrated PKI. Using Group Policy settings, you can provide client computers with computer and user certificates using autoenrollment. Typically, wireless access points aren t able to store a list of authorized users. Instead, the wireless access points submit requests to a central authentication server, known as a RADIUS server. Using NPS, Windows Server 2008 can provide a RADIUS server that authenticates credentials based on client certificates or user credentials.
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