Run Everything Right Here

Every experiment in this lab has a runnable version in the built-in compiler — click RUN CODE on any practical. Client–server pairs are combined into one program with fork(): the child process plays the server, the parent plays the client, talking over loopback (127.0.0.1) exactly as they would across two terminals.

Compiler Info

Lab Setup (for your own machine)

For the real lab record, use any Linux box or WSL (Windows Subsystem for Linux) on Windows:

sudo apt install build-essential

Compile with gcc prog.c -o prog; for client–server experiments run the server and client in two separate terminals.

Common Header Block

Every program in this lab starts with the same include set — write it once at the top of your record:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

How This Lab Maps to the Theory Course

Tip: after each experiment, note in your record WHICH theory section it demonstrates — examiners reward the connection, and the viva questions are drawn from exactly those sections.