If you understand the concepts of IP addresses, then lets move on to TCP and UDP ports and how they work. The devices and comptuers connected to the Internet use a protocol called TCP/IP to ...

If your app is using bog-standard OpenVPN - or even some proprietary protocols, such as ExpressVPN's Lightway - you might find it gives you both UDP and TCP options. You may like Can fast be faster?

TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) constitute the vast majority of packets the average Internet user sends and receives. Inevitably, errors will at some point work ...

Whether you're browsing the internet, streaming videos, or troubleshooting network issues, underlying networking protocols such as TCP/IP, UDP, and ICMP are responsible for the smooth transmission of ...

Security practitioners for decades have advised people to limit DNS queries against their DNS servers to only use UDP port 53. The reality is that DNS queries can also use TCP port 53 if UDP port ...

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.