3/5/2023 0 Comments Pid 0 tcpview![]() For example, the following command redirects the output to a file named C:\NETSTAT.TXT:įigure A, below, illustrates the command in action, as well as the contents of the NETSTAT.TXT file. You can accomplish this by appending a greater-than sign (>) and a file name to the end of the command. Therefore, for the purposes of Windows XP firewall troubleshooting, it's a good idea to redirect the output to a file. Finally, the /O switch displays the process number associated with the various ports.ĭepending on how many processes are running, the command's output can be too long to fit on a single screen. The /N switch forces Netstat to display IP addresses and port numbers in numerical form. The /A switch causes Netstat to display all connections and listening ports. With that said, there are three switches you can use to hunt down firewall port numbers. You can also view the Netstat documentation on Microsoft's Windows XP Professional documentation site. ![]() ![]() If you want to learn more about other available switches, just enter NETSTAT /? at the command prompt. I could easily write an entire article on the syntax for the command-line tool Netstat, but for the purposes of this tip, I'll only discuss the switches needed to determine which firewall ports an application uses. ![]()
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