TLDR Dev · ARTICLES & TUTORIALS

THE INTERNET IS COOL. THANK YOU, TCP

cefboud.com12 min read

Summary from the TLDR Dev newsletter

TCP is a protocol that underpins much of the Internet. It controls reliable data transmission despite underlying network instability. TCP has mechanisms for flow and congestion control, which prevent overwhelming receivers and the network itself, along with allowing it to recover from packet loss, corruption, and reordering. This article provides C code examples with a simple TCP server and a basic HTTP server, showing how applications use TCP for reliable communication.