1. MCDST 70-271: Supporting Users and Troubleshooting a Microsoft Windows XP Operating System Chapter 14: Troubleshooting Remote Connections

2. Guide to MCDST 70-2712 Objectives Understand remote access and remote access configuration Connect to the Internet Connect to the network via My Workplace Troubleshoot VPN connections Create advanced remote access connections

3. Guide to MCDST 70-2713 Remote Access Components of remote access configuration –Clients –Protocols –WAN connectivity –Security –Server –LAN protocols

4. Guide to MCDST 70-2714 Remote Access (continued) Remote control –Employs remote client as dumb terminal for the answering system –Keyboard entries and mouse movements are passed to a host system Remote access –Establishes actual network connection between a remote client and the answering computer system –Keyboard entries and mouse movements occur locally

5. Guide to MCDST 70-2715 Remote Access (continued) Terminal Services –Allows thin clients to participate in a rich computing environment –Employed in situations where budget restrictions prevent purchase of fully capable desktop systems Remote computers that exist as independent systems –Use remote access to make connections over some type of communication link to a system

6. Guide to MCDST 70-2716 Remote Access Configuration Remote access –Configured and managed from the Network Connections window Network Connections window –Accessed through the Start menu

7. Guide to MCDST 70-2717 Remote Access Configuration (continued)

8. Guide to MCDST 70-2718 Installing Remote Access Hardware Hardware required must be physically present and its drivers properly installed Windows XP inspects the hardware and attempts to identify any new devices –If a new device is recognized, Windows XP attempts to locate and install drivers for it –When Windows XP is unable to identify a device, you are prompted to provide a path for the drivers or you need to use the Add/Remove Hardware applet or the Phone and Modem Options applet –For some specialty hardware, you might need to use the vendor-supplied installation routine to install the correct drivers

9. Guide to MCDST 70-2719 Phone and Modem Options Dialing Rules tab –Lists the defined dialing locations –Dialing location Collection of remote access properties used to govern how links are established Modems tab –Lists all currently installed modems and their attached ports Advanced tab –Lists all the telephony providers present on the system

10. Guide to MCDST 70-27110 Connecting to the Internet Options in the Connect to the Internet Wizard –Choose from a list of Internet service providers (ISPs) –Set up my connection manually –Use the CD I got from an ISP

11. Guide to MCDST 70-27111 Connecting to the Internet (continued)

12. Guide to MCDST 70-27112 Using a Connection Object Click the Dial button to test the new object –If modem was properly configured, phone line was attached, and there was no busy signal, you should have established an Internet connection –Default home page should be displayed in Internet Explorer Double-clicking the connection icon opens the connection status dialog box

13. Guide to MCDST 70-27113 Using a Connection Object (continued) General tab –Displays connection status, duration, speed, packets (LAN connections), bytes (dial-up connections), compression (dial-up connections), and errors (dial-up connections) –You can access the connection object’s Properties dialog box or disconnect the link Details tab –Lists data relevant to the connection, such as server type, protocols, and IP addresses of server and client

14. Guide to MCDST 70-27114 Properties Dialog Box Used to configure settings that were not offered by the New Connection Wizard General tab –Used to configure devices and dial-up numbers Options tab –Configures the behavior of the connection object while establishing a connection

15. Guide to MCDST 70-27115 Properties Dialog Box (continued)

16. Guide to MCDST 70-27116 Properties Dialog Box (continued)

17. Guide to MCDST 70-27117 Properties Dialog Box (continued) Security tab –Used to define the connection object’s security requirements Networking tab –Used to configure the network communication components employed by the connection object Advanced tab –Used to configure Internet Connection Firewall (ICF) and Internet Connection Sharing (ICS)

18. Guide to MCDST 70-27118 Properties Dialog Box (continued)

19. Guide to MCDST 70-27119 Properties Dialog Box (continued)

20. Guide to MCDST 70-27120 Internet Connection Sharing (ICS) Used to share a single network connection with a small group of networked computers Enabled on the Advanced tab of a connection object’s Properties dialog box Incorporates –The Network Address Translation (NAT) function –A Dynamic Host Configuration Protocol (DHCP) address allocator –A Domain Name System (DNS) proxy

21. Guide to MCDST 70-27121 Internet Connection Firewall (ICF) A security measure for protecting network connections from unwanted traffic Can set restrictions on traffic in and out of your network to an external network or the Internet A stateful firewall By default, silently drops all traffic that is not allowed to enter the private network

22. Guide to MCDST 70-27122 Troubleshooting Internet Connectivity Check the configuration settings of the connection object Verify that the ISP’s modems are answering Verify that: –Your modem or other connection device is properly installed and connected correctly –Necessary drivers are installed and the latest versions are used

23. Guide to MCDST 70-27123 Connecting to the Network at My Workplace Virtual Private Networking (VPN) –Employs the Internet as a long-distance carrier to enable distant, secure LAN connections –Enables mobile or remote computers to establish a connection with a LAN over a local connection to an ISP –Encrypts authentication credentials and data transferred

24. Guide to MCDST 70-27124 Troubleshooting VPN Connectivity Ensure that your network or Internet link is up and fully functioning VPN client and VPN server must have public IP address if connection is being made over the Internet If a firewall, proxy, or NAT server is located between VPN client and VPN server, devices must be appropriately configured to allow VPN link to occur

25. Guide to MCDST 70-27125 Setting Up an Advanced Connection Windows XP Professional can act as a remote access server for a single incoming connection Process of configuring an incoming connection object includes: –Selection of devices that answer incoming calls –Whether to allow VPN links –Which users can dial in –Which networking components are supported over a dial-in link

26. Guide to MCDST 70-27126 Accepting Incoming Connections Windows XP Professional can act as a remote access server for a single incoming connection Connection can be made over a modem, an existing Internet/network connection (a VPN link), or a direct access cable Use this feature only for special-purpose applications –Accepting a dial-in connection can be used to access your home system while traveling

27. Guide to MCDST 70-27127 Accepting Incoming Connections (continued)

28. Guide to MCDST 70-27128 Connecting Directly to Another Computer Serial connection –Method of communication that transfers data across a medium one bit at a time –Usually adds start and stop bits to ensure reliable delivery To employ direct connection: –Attach cable between the two systems –Create a direct connection object on both systems

29. Guide to MCDST 70-27129 Summary Windows XP can be used to dial out to other systems, such as an ISP, company network, or link to a VPN Network Connections tool is used to create and manage most of the remote access features of Windows XP Connecting to the Internet over a modem involves creating a new connection object that includes: –Phone number of the ISP, username, and password –Any customized (ISP-specific) configuration requirements

30. Guide to MCDST 70-27130 Summary (continued) ICS can be used on any connection object to share connectivity offered ICF is used to protect any connection object Troubleshooting an ISP link involves: –Verifying modem hardware connection and installation –Configuring the connection object itself –Testing to ensure ISP is functioning

31. Guide to MCDST 70-27131 Summary (continued) Connection to a LAN through a VPN requires a pre-existing network connection between the client and the LAN Troubleshooting VPNs involves checking that: –Internet connection is functioning –VPN client connection object is properly configured –Windows XP supports advanced connections