Most MCSE exams will test your troubleshooting knowledge. You need to know the different utilities available to troubleshoot a problem as well as how to use them. Exam 70-291 Implementing, Managing, and Maintaining a Microsoft Windows Server 2003 Network Infrastructure is no exception. Your knowledge of network troubleshooting will undoubtedly be challenged. With this is mind, one of the commands you must be familiar with is the Netsh command.

Netsh is a command line utility that allows you to modify the network configuration of the local computer or a remote computer. Netsh in Windows Server 2003 now introduces a set of diagnostic commands that can be used for troubleshooting. The table below describes some of the context commands that can be useful when troubleshooting Internet connectivity.

• Connect ieproxy: Establishes, verifies and drops a connection with the proxy listed in the properties of Internet Explorer.
• Connect iphost: Establishes, verifies, and drops a connection with a specified host using a specified port.
• Connect mail: Established, verifies, and drops a connection with the host specified as the mail server within Outlook Express.
• Ping: Verifies connectivity with the remote host specified.
• Ping adapter: Verifies connectivity through a specified adapter. If used without parameters, it will test connectivity through all adapters installed.
• Ping gateway: Verifies connectivity with the default gateways listed in the TCP/IP properties for the specified adapter. If no adapter is specified, connectivity is verified through all installed adapters.
• Ping DNS: Verifies connectivity with DNS servers listed in the TCP/IP properties for the specified adapter. If no adapter is specified, connectivity to DNS servers is tested through all adapters installed.
• Ping ieproxy: Verifies connectivity with the proxy server listed in the properties of Internet Explorer.
• Ping iphost: Verifies connectivity with a local or remote host.
• Ping mail: Verifies connectivity with the mail server configured in Outlook Express.
• Show modem: Lists information about the modem specified.
• Show gateway: Lists all Internet gateways for the specified adapter.
• Show ieproxy: Lists all Internet Explorer proxy servers for the specified adapters.
• Show mail: Shows the Oulook Express mail server configured on the local computer.