System and network troubleshooting often involves checking and obtaining information about ports to ensure functionality and determine the source of problems. Learn handy tips to help keep systems ...

I'm writting a server program, don't know how far I'll get but I'm giving it a try. What I need to do is open a new port for each user (connection). How, programaticly, do I check if a certain port is ...

Email: It's been around for decades, and people are still confused about how it works--and for good reason. Setting up and troubleshooting an email account can be an irritating venture. Recently, we ...

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 lets friends connect directly to your Minecraft server, but getting it working is one of the most common headaches in self-hosted multiplayer. The problem usually comes down to one of ...