If you haven’t already done so, compile programs TCPEchoServer and TCPEchoClient from Sect. 2.2.1 and then run them as described at the end of that section.

Sect. 2.2.1

A communication link created via TCP/IP sockets is a connection orientated link. This means that the connection between server and client remains open throughout the duration of the dialogue between the two and is only broken (under normal circumstances) when one end of the dialogue formally terminates the exchanges (via an agreed protocol). Since there are two separate types of process involved (client and server), we shall examine them separately, taking the server first. Setting up a server process requires five steps…