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 ...

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 ...

A Port basically serves as an interface between your computer and the internet or other computers in the network. Every communication over the web is exchanged using these ports, so they are an ...

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 ...

You could try telneting to port 139 from an outside machine. If you get anything other than an access denied, you likely have an open port.