As with any network and internet-capable computing system, many of Apple's services and programs require access to the internet and/or local network using TCP and UDP ports to function properly. When ...

Data packets travel to and from numbered network ports associated with particular IP addresses and endpoints, using the TCP or UDP transport layer protocols. All ports are potentially at risk of ...

Are you having trouble getting your favorite multiplayer games or chat program to connect to the internet? Does your tablet’s web browser fail despite being connected to a Wi-Fi network? Your problem ...

It can be used for so many different things ...