Learn the fundamentals of socket programming to build networked applications using sockets, focusing on TCP/UDP protocols, client-server models, and network communication patterns.
Intermediate
70h
socket
network
tcp
udp
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Proof of Competence
0%
0 / 25 checkpoints declared
0/13 evidence needed for 100% — max 50% without proof
Fundamentals of Sockets and Networking Basics
You can create and bind a basic TCP socket on Linux and understand its lifecycle
Milestone
Write and run a simple TCP server socket that accepts client connections (server accepts connection, no crash)
Checkpoint
Build a minimal echo server using TCP sockets on Linux to reinforce socket lifecycle
Project
You can correctly construct and parse socket address structures for network communication
Milestone
Demonstrate conversion between host and network byte order using htons(), ntohl() (correct output confirmed)
Checkpoint
Programming TCP Sockets
You can implement a robust TCP client and concurrent server in C handling multiple clients
Milestone
Implement TCP client handshake: connect to server and exchange basic messages (successful data exchange)
Checkpoint
Build a simple multi-client chat server using TCP sockets and forked processes
Project
You can manage multiple simultaneous TCP connections using select/poll with proper socket options
Milestone
Implement a non-blocking TCP server that can handle timeouts and multiple clients (server survives idle periods and handles timeouts)
Checkpoint
UDP Socket Programming and Patterns
You can implement UDP client and server sockets that send and receive datagrams correctly
Milestone
Write a UDP echo server and client to verify packet transmission and reception (client receives identical echo)
Checkpoint
Build a simple UDP-based heartbeat protocol to detect alive nodes on a network
Project
You can manage UDP multicast groups and send/receive broadcast messages on Linux
Milestone
Join a multicast group and receive messages successfully from multiple sources (correct multicast message delivery)
Checkpoint
Practical Tools and Debugging for Socket Development
You can effectively debug socket programs using command-line tools and traffic analysis
Milestone
Capture and analyze TCP handshake packets with tcpdump or Wireshark (clear handshake packets identified)
Checkpoint
Create a debug script automating socket state checks and log parsing for your projects
Project
You can integrate SSL/TLS encryption into a socket application and verify encrypted data transmission
Milestone
Set up a basic SSL client-server example using OpenSSL libraries on Linux (encrypted connection established, validated)
Checkpoint
Socket Programming Ecosystem and Extensions
You can write basic asynchronous socket applications using a chosen high-level library
Milestone
Implement a TCP echo server using Python's asyncio or C++ Boost.Asio (asynchronous operation verified)
Checkpoint
You can write socket programs that compile and run across multiple platforms with minimal changes
Milestone
Port a Linux socket program to Windows and verify correct socket operation (cross-platform functionality tested)
Checkpoint
Create a simple cross-platform chat app with abstraction layers to hide OS differences
Project