Course 2272C: Implementing and supporting Microsoft Windows XP professional - Module 7

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Course 2272C: Implementing and supporting Microsoft Windows XP professional - Module 7

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Module 7: Configuring TCP/IP addressing and name resolution. The following topics are covered in this module: Configuring IP addresses, configuring windows firewall, troubleshooting IP addresses, determining TCP/IP name resolution methods, configuring a DNS client and a WINS client, connecting to a remote host.

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Nội dung Text: Course 2272C: Implementing and supporting Microsoft Windows XP professional - Module 7

Module 7: Configuring TCP/IP Addressing and Name Resolution
Overview Configuring IP Addresses Configuring Windows Firewall Troubleshooting IP Addresses Determining TCP/IP Name Resolution Methods Configuring a DNS Client and a WINS Client Connecting to a Remote Host
Lesson: Configuring IP Addresses Assigning Static IP Addresses Overview of Dynamic Address Assignment Using DHCP to Automate IP Address Assignments Enabling an Alternate IP Configuration
Assigning Static IP Addresses Specifies 192.168.2.15 Client with Static Addressing
Overview of Dynamic Address Assignment Dynamic address Alternate static address Automatic private IP Address Client with DHCP Server Dynamic Addressing Request for IP address Automatic Is No alternate IP No Is DHCP Private IP available? address configured? generates IP address Yes Yes Assign Assign IP alternate address IP address
Using DHCP to Automate IP Address Assignments
Enabling Alternate IP Configuration Alternate IP configuration: Specifies an alternate IP address if DHCP is unavailable Provides alternate configuration options • Automatic private IP address • User configured
Lab A: Configuring IP Addresses for Windows XP Professional Exercise 1: Configuring Windows XP Professional to Use Static TCP/IP Addressing Exercise 2: Configuring Windows XP Professional to Use DHCP for IP Address Assignment Exercise 3: Configuring Windows XP Professional to Use an Alternate TCP/IP Configuration
Lesson: Configuring Windows Firewall Using Global Configuration Using Group Policy Support Using On with No Exceptions Operational Mode Using Static Port Openings Configuring Basic ICMP Options Logging Dropped Packets and Successful Connections
Using Global Configuration Applies all new configurations and configuration changes to all network connections Configuration can still be performed on a per-interface basis
Using Group Policy Support With Windows XP Service Pack 2, every configuration option can be set through Group Policy New configuration options:  Operational mode (On, On with no exceptions, Off)  Allowed Programs on the exceptions list  Opened static ports  ICMP settings  Enable RPC and DCOM  Enable File and Printer Sharing
Using On with No Exceptions Operational Mode Keeps Windows Firewall enabled while only solicited traffic is allowed Blocks all unsolicited requests to connect to your computer Blocks unsolicited requests to share files or printers, and discovery of network devices To turn on with no exceptions: 1 Open Windows Firewall 2 On the General tab, click On Select Don't allow exceptions check box, and 3 then click OK
Using Static Port Openings In Windows XP Service Pack 2:  Ports are configured to receive only network traffic that has a source address  When file sharing ports are opened, the local subnet restriction is applied by default Recommendation:  Apply local subnet restriction to static ports that are communicating on a local network
Configuring Basic ICMP Options Enable ICMP options when needed; disable after troubleshooting ICMP options are disabled by default To enable ICMP: To create an ICMP Open Windows exception: 1 Firewall 1 Open Windows Firewall On the Advanced tab, In the Windows Firewall 2 under ICMP, click 2 dialog box, click Advanced Settings tab In the ICMP dialog In Network Connection 3 box, select check box 3 Settings section, select beside each type of the connection that will ICMP message to be have an exception, and enabled then click Settings 4 In the Advanced Settings dialog box, click ICMP tab
Logging Dropped Packets and Successful Connections Windows Firewall can keep a security log of dropped packets and successful connections To enable security To locate and open log file: logging: 1 Open Windows Firewall 1 Open Windows Firewall 2 In the Windows Firewall 2 In the Windows Firewall dialog box, click dialog box, click Advanced Advanced tab. Open the tab. Open Log Settings Log Settings dialog box dialog box In the Log Settings dialog 3 Click OK to close the Log 3 box, under Log File Settings dialog box Options section, click Save As 4 In the Browse dialog box, right-click the pfirewall.txt file and then choose Open
Lab B: Configuring Windows Firewall for Windows XP Professional Exercise: Configuring Windows Firewall
Lesson: Troubleshooting IP Addresses Using TCP/IP Troubleshooting Utilities Using ipconfig to Troubleshoot IP Addressing Using Repair to Troubleshoot IP Problems Using ping to Troubleshoot IP Addressing
Using TCP/IP Troubleshooting Utilities Common TCP/IP diagnostic utilities include the following:  arp  hostname  ipconfig  ping  pathping  tracert
Using ipconfig to Troubleshoot IP Addressing The command prompt ipconfig is used to: View TCP/IP information Verify the TCP/IP configuration options on a host Additional commands: ipconfig /release ipconfig /renew
Using Repair to Troubleshoot IP Problems Repair attempts to refresh stored data related to connections, and to renew registration Used to:  Release DHCP address  Flush ARP  Flush NetBIOS and DNS local caches To repair a LAN or high-speed Internet connection: 1 Open Network Connections Under LAN or High-Speed Internet, click connection 2 to be repaired, and then, under Network Tasks, click Repair this connection 3 If your connection does not work after you click Repair this connection, try additional steps