Socket programming boils down to two systems communicating with one another. ... (TCP) and User Datagram Protocol (UDP). TCP and UDP are used for different purposes and both have unique constraints: ...

When working with sockets you can use either the TCP/IP (Transmission Control Protocol/Internet protocol) or UDP/IP (User Datagram Protocol/Internet protocol) communication mechanisms.

TCP vs. UDP vs. ICMP: Understanding the Differences. ... netstat -tulnp # Show TCP/UDP listening ports and active connections ss -tulnp # Alternative to netstat for socket ... and has been a Linux ...

For those of you who are fluent with sockets programming and recall that listening TCP sockets are forked upon reception of a connect ... for TCP/UDP sockets, the filter is applied to layer 4 ...