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 ...

Run the command "netstat -ab" in an elevated Command Prompt, PowerShell, or Terminal window to see a list of applications and their associated ports. Checking open ports can be done using built-in ...

The various Ethernet ports on your router can serve different purposes, depending on the model. Thankfully, it's not hard to ...

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 ...

When security scanners (or hackers) look for vulnerable ports on Windows PCs and other computers, they'll often perform port scans. These may target only well-known ports, or those for which ...

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 ...

When security scanners (or hackers) look for vulnerable ports on Windows PCs and other computers, they'll often perform port scans. These may target only well-known ports, or those for which ...