11 MAINTAINING A NETWORK INFRASTRUCTURE Chapter 9

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE2 USING THE TASK MANAGER

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE3 FILTERING NETWORK TRAFFIC

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE4 CHOOSING COLUMNS

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE5 USING THE PERFORMANCE CONSOLE

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE6 ADDING NETWORK COUNTERS

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE7 USING THE PERFORMANCE CONSOLE TO CREATE ALERTS

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE8 HOW TO HANDLE NOTIFICATION

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE9 MONITORING NETWORK TRAFFIC BY USING NETSTAT

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE10 VIEWING INFORMATION BY USING NETSTAT

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE11 MICROSOFT WINDOWS SERVER 2003 NETWORK MONITOR

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE12 CAPTURING DATA BY USING NETWORK MONITOR

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE13 USING NETWORK MONITOR TRIGGERS

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE14 TROUBLESHOOTING INTERNET CONNECTIVITY  Inside out  Outside in  Inside out  Outside in

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE15 VERIFYING TCP/IP CONFIGURATION BY USING IPCONFIG /ALL  Verify the computer has a correct Internet Protocol (IP) address and subnet mask.  Verify that the default gateway is correct.  Verify that there is at least one Domain Name System (DNS) server listed.  Verify that the computer is configured correctly for Dynamic Host Configuration Protocol (DHCP).  Verify the computer has a correct Internet Protocol (IP) address and subnet mask.  Verify that the default gateway is correct.  Verify that there is at least one Domain Name System (DNS) server listed.  Verify that the computer is configured correctly for Dynamic Host Configuration Protocol (DHCP).

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE16 VERIFYING NAME RESOLUTION FOR THE CLIENT COMPUTER

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE17 VERIFYING NAME RESOLUTION FOR THE DNS SERVER

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE18 USING THE REPAIR FEATURE

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE19 VERIFYING THE DHCP SERVER Some reasons the DHCP information might not be delivered to the client:  A router is blocking the Bootstrap Protocol (BOOTP).  The DHCP relay agent does not exist on segments without a DHCP server.  Addresses are not available in the DHCP scope.  DHCP server is not functioning. Some reasons the DHCP information might not be delivered to the client:  A router is blocking the Bootstrap Protocol (BOOTP).  The DHCP relay agent does not exist on segments without a DHCP server.  Addresses are not available in the DHCP scope.  DHCP server is not functioning.

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE20 BRIDGING MULTIPLE NETWORKS

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE21 CREATING A BRIDGE CONNECTION

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE22 USING NETDIAG  Command-line tool included in the Support Tools  Performs a set of tests on each interface card  Performs a set of global tests  Command-line tool included in the Support Tools  Performs a set of tests on each interface card  Performs a set of global tests

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE23 TROUBLESHOOTING SERVER SERVICES

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE24 SERVICE DEPENDENCIES

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE25 TROUBLESHOOTING LOGON ERRORS

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE26 SETTING BEHAVIOR IN THE RECOVERY TAB

Chapter 9: MAINTAINING A NETWORK INFRASTRUCTURE27 SUMMARY  Viewing network statistics using the Task Manager Networking tab  Using the Performance console to monitor traffic and configure alerts and performance logs  Using Netstat to monitor network traffic  Using Network Monitor Lite and Network Monitor standard  Troubleshooting Internet connectivity  Managing network services  Viewing network statistics using the Task Manager Networking tab  Using the Performance console to monitor traffic and configure alerts and performance logs  Using Netstat to monitor network traffic  Using Network Monitor Lite and Network Monitor standard  Troubleshooting Internet connectivity  Managing network services