To enable a file-sharing program to access your network, find out what port numbers the software uses to set up port forwarding on the router.

Shared Printers When you network a printer through a router, you don't need to forward a port on the router because the printer and the computers sharing the printer are located inside the firewall.

In a TCP/IP network, a port is a number that identifies the type of network traffic. If an incoming or outgoing port is "open," packets with that port number are allowed into or out of the local ...

CSO examines risky network ports based on related applications, vulnerabilities, and attacks, providing approaches to protect the enterprise from malicious hackers who misuse these openings.

Also called "port mapping," port forwarding is directing traffic from the outside world to the appropriate server inside a local TCP/IP network. Internet services are identified by a standard port ...