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 ...

A port is a numeric identifier for software that runs on a computer, like Web server or email server software. When a port is open, it's accepting connections from the outside world. It's not uncommon ...

Sometimes while performing troubleshooting of an application or just testing whether you can access something across the network, being unable to connect to a required port on another system can ...

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 ...

Anywhere that multiple computing devices share a single Internet connection there is a router. Recently routers from Linksys, Netgear, Cisco and others were found to have a huge security flaw. This is ...

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 ...

Quickly finding the fastest USB port may seem complicated, what with the sheer number of USB ports modern motherboards and cases are packing, but it's actually fairly simple. Just follow the advice ...

USB 3.0 was launched back in 2008. This new edition has more functions and better features included in the port. Although it looks just like a simple data cable port, it actually makes a lot more ...