Summary: The Windows services file, located in c windows\system32\drivers\etc, lists service names and port numbers. If another program uses the same port number as a service that's listed in the ...

Your computer's firewall is a network security protocol that blocks unauthorized access from a local network or the Internet. The firewall allocates "ports" to programs that require network and ...

File-sharing applications and other programs that access a transmission control protocol/Internet protocol network use ports to route traffic to a destination. Most routers, however, use a firewall to ...

Google Voice is a great service, but changing your phone number can seem like pulling teeth. If you've been thinking about porting your existing number to Voice, here's what you need to know to make ...