What is a simple way in Windows to test if traffic gets through to a specific port on a remote machine?
Windows – In Windows, using the command line, how do you check if a remote port is open
networkingtcpipwindows
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Best Answer
I found a hiddem gem the other day from Microsoft that is designed for testing ports:
Portqry.exe
"Portqry.exe is a command-line utility that you can use to help troubleshoot TCP/IP connectivity issues. Portqry.exe runs on Windows 2000-based computers, on Windows XP-based computers, and on Windows Server 2003-based computers. The utility reports the port status of TCP and UDP ports on a computer that you select. "