Project.004: Networking and Network Programming using Sockets, TCP/IP, IPv4
Introduction
This course is tailored for aspiring engineers with 0 to 1 years of relevant experience, focusing on the essentials of Linux network programming. It covers foundational network concepts, Linux networking APIs, socket programming, and various network protocols. The course combines theoretical learning with practical applications, culminating in a project that allows participants to develop a real-world network application on Linux.
Target Audience
* Recent graduates and entry-level software engineers looking to specialize in network programming on Linux.
* Individuals with basic programming knowledge seeking to transition into network engineering roles.
* Students of computer science or related fields with an interest in networking and Linux system programming.
Duration
* 20 sessions, each lasting 1 hour, delivered over 4 weeks.* The course will conclude with a comprehensive project that applies the concepts learned.
Course Overview:
This course focuses on mastering network programming using sockets, implemented entirely in C. Participants will learn to work with the TCP/IP stack, sockets, and protocols like TCP, UDP, and IP. The course emphasizes hands-on experience with real-world networking scenarios.
Learning Objective
Participants will:* Understand the basics of networking and Linux network architecture.
* Learn socket programming and how to develop network applications in C.
* Gain insights into TCP/IP, UDP, and other key network protocols.
* Master the use of Linux command-line tools and Bash scripting for network task automation and management.
* Develop a real-world network application that demonstrates their understanding and skills in Linux network programming.
Prerequisites
These Modules should be should be completed before-hand...
Course Curriculum
Introduction to Linux and NetworkingOverview of Linux OS, networking concepts, and the TCP/IP model.Linux Network Environment SetupConfiguring the Linux networking environment, tools, and utilities.
Session 1: Introduction to Networking and Protocols
Overview of Network Programming
Client-server architecture
OSI and TCP/IP model fundamentals
Key differences between TCP and UDP
Session 2: Introduction to Sockets
What is a socket?
Types of sockets (Stream, Datagram, Raw)
C socket libraries and system calls
Writing a simple socket program in C
Session 3: Environment Setup and Tools
Setting up a Linux environment for C development
Installing and using tools like GCC, GDB, and Wireshark
Introduction to networking utilities (netstat, ifconfig, ip)
Session 4: IP Protocol and Addressing
IP addressing (IPv4, IPv6)
Network and broadcast addresses
Subnetting and CIDR
IP protocol header structure
Session 5: TCP/IP Stack
Layers of the TCP/IP stack
Structure and flow of network packets
Encapsulation and de-encapsulation
Analyzing TCP/IP packets with Wireshark
Session 6: TCP Protocol – Theory and Use Cases
TCP characteristics (connection-oriented, reliable)
TCP connection lifecycle (3-way handshake, teardown)
Use cases of TCP in real-world applications
Key system calls in TCP socket programming
Session 7: Hands-on TCP Socket Programming
Writing a TCP client-server application in C
Key system calls: socket(), bind(), listen(), accept(), connect(), close()
Implementing data exchange between client and server using send() and recv()
Session 8: UDP Protocol – Theory and Use Cases
UDP characteristics (connectionless, unreliable)
Use cases of UDP (e.g., video streaming, DNS)
Key system calls in UDP socket programming
Session 9: Hands-on UDP Socket Programming
Writing a UDP client-server application in C
Key system calls: socket(), sendto(), recvfrom(), bind()
Implementing simple applications using UDP sockets
Session 10: Error Handling and Debugging
Common errors in socket programming
Error handling strategies using errno and perror()
Debugging socket programs using GDB
Introduction to network debugging with tcpdump and Wireshark
Session 11: TCP and UDP Socket Options
Configuring socket options using setsockopt()
TCP_NODELAY, SO_REUSEADDR, SO_RCVTIMEO, SO_SNDTIMEO
Handling socket timeouts and buffer sizes
Session 12: Data Serialization and Application Protocols
How to format and parse data over a network
Working with raw data (byte streams) in C
Introduction to application-layer protocols like HTTP and DNS
Session 13: Non-blocking I/O
Blocking vs non-blocking sockets
Introduction to fcntl() and ioctl() for non-blocking operations
Writing non-blocking socket applications using select()
Session 14: Socket Multiplexing
Concept of multiplexing and concurrent socket handling
Using select() and poll() to handle multiple connections
Implementing a multi-client server using select()
Session 15: Network Timeouts and Resilience
How to handle network timeouts using socket options
Implementing fault tolerance in networked applications
Retransmission and retry logic for reliable communication
Session 16: Introduction to Raw Sockets
What are raw sockets?
Building custom protocols using raw sockets
Working with packet structures and headers (IP, TCP, UDP)
Security considerations and risks of using raw sockets
Session 17: High-Performance Network Programming
Optimizing socket performance using efficient system calls
Managing multiple connections using multithreading (pthread) and multiprocessing
Implementing efficient I/O strategies (asynchronous and event-driven)
Session 18: Secure Socket Programming
Introduction to SSL/TLS for secure communication
Using OpenSSL with C to secure socket connections
Implementing encrypted communication channels with SSL
Session 19: Network Debugging and Performance Tuning
Advanced debugging techniques using GDB and strace
Network performance analysis (latency, throughput)
Tools for tuning and optimizing network applications (iperf, ethtool)
Session 20: EmbLogic Project and Review
Project: Build a complete networked application in C (e.g., chat server, file transfer, HTTP server)
Final review of concepts learned
Q&A, best practices, and guidance for real-world network programming
Continued Project Development and Completion
Detailed development phases of the project with iterative feedback.
Integration of advanced networking concepts and technologies.
Final project presentation and review.
Integration of advanced networking concepts and technologies.
Final project presentation and review.
Course Delivery
Online: Live interactive sessions via video conferencing platforms for theoretical lessons.
In-person: Hands-on labs and debugging sessions in a classroom setup for practical experience.
Hybrid: A mix of online theory classes and in-person or virtual practical sessions for a comprehensive learning experience.
Training Methodology
Lectures: In-depth presentations on both foundational concepts and advanced networking topics.
Hands-On Labs: Real-world exercises and coding sessions to apply and reinforce learned concepts.
Reading Assignments: Curated list of kernel documentation, programming books, and influential articles for deeper understanding.
Videos: Visual content to demonstrate networking concepts and coding techniques effectively.
Deliverables
Upon completion of the course, participants will have:* A solid foundation in C programming tailored to network applications.
* In-depth knowledge of socket programming and major network protocols.
* Proficiency in using Linux for network programming, including automation tasks with Bash scripting.
* A capstone project that showcases their ability to design and implement a network application on Linux, reflecting their cumulative learning and skills.
About Linux Network Programming ...
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