Port Query (PortQry.exe) is a command-line utility in the Windows operating system that you can use to help troubleshoot TCP/IP connectivity issues. The tool reports the port status of TCP and UDP ...

Port forwarding will open specific ports used by specific services in order to make communication more seamless. UPnP can do this automatically in some cases, as outlined above, but sometimes it can ...

PortExpert is a free application that can give very useful information about all TCP, UDP communications connected to the system and is hence useful to identify potential threats. These days we are ...

Netstat, the TCP/IP networking utility, has a simple set of options and identifies a computer’s listening ports, along with incoming and outgoing network connections. This data can be very helpful if ...

Nintendo says just open all udp ports! Hah! <BR><BR>You could have to check the ports while you are searching for opponents and while playing a game. This could be done by a port checking program or ...