Two of the most famous Internet transport protocols, User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) and other protocols apply port numbers for many sessions of communication (destination and source port numbers in conjunction with the destination and source IP addresses).Ī combination of a protocol, port, and IP address like TCP/UDP is called a socket.
A port is a 16-bit (o to 65535) number that differentiates a single application from others on various end systems. It acts as a communication endpoint for identifying a given process or application on the Linux operating system. Next → ← prev How to check open ports in Linuxīriefly, we will describe ports within the computer networking and further, we will talk about how we can list every open port in Linux.Ī port can be defined as a logical entity in computer networking and software terms.
