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dgt_net02 – Write TCP e UDP packets with C

Module Title: dgt_net02 – Write TCP e UDP packets with C

Overview:
This comprehensive module, “dgt_net02 – Write TCP e UDP packets with C,” is meticulously designed for individuals eager to master the intricacies of networking and hacking through practical programming skills. With a focus on Transmission Control Protocol TCP and User Datagram Protocol UDP, participants will delve into creating custom network packets using the C programming language. This module bridges theoretical knowledge with hands-on coding experience, empowering learners to understand low-level network communication and enhancing their cybersecurity toolkit.

module Objectives:
– Understand the fundamentals of TCP/IP networking protocols.
– Learn how to create and manipulate TCP and UDP sockets in C.
– Write robust code for crafting custom network packets tailored to specific needs.
– Explore practical applications and scenarios where such skills can be employed ethically.
– Gain insights into network hacking techniques from a defensive perspective.

module Content:
1. Introduction to Networking Protocols:
– Overview of TCP/IP Suite
– Differences between TCP and UDP

  1. C Programming for Networking:
  2. Basics of socket programming in C

  3. Understanding data structures for networking e.g., structs, pointers

  4. Creating TCP Sockets:

  5. Steps to create a TCP server and client using sockets

  6. Handling connections, reading/writing data, and closing sockets

  7. Creating UDP Sockets:

  8. Establishing UDP communication channels

  9. Working with datagrams for sending/receiving data efficiently

  10. Crafting Custom Packets:

  11. Manipulating packet headers and payloads

  12. Implementing custom protocols over TCP/UDP

  13. Examples of Code for Creating Sockets in C:

  14. Step-by-step coding examples to create both TCP and UDP sockets.

  15. Debugging and optimizing network code.

  16. Ethical Hacking and Network Security:

  17. Understanding how these skills can be used for penetration testing

  18. Emphasizing ethical considerations and legal compliance

  19. Hands-on Labs and Projects:

  20. Real-world projects to practice creating, sending, and receiving custom packets.

  21. Collaborative labs that simulate network environments.

  22. Advanced Topics Optional:

  23. Exploring raw sockets for even more control over packet crafting
  24. Integrating network programming with other system-level coding practices

Prerequisites:
– Basic knowledge of C programming
– An understanding of networking concepts is beneficial but not mandatory

Target Audience:
This module is ideal for software developers, cybersecurity enthusiasts, ethical hackers, and IT professionals who aim to enhance their skills in low-level network communication. It caters to both beginners with a foundational grasp of programming and experienced individuals looking to deepen their expertise.

By the end of this module, participants will have acquired practical abilities in crafting TCP and UDP packets using C, laying the groundwork for advanced studies or professional applications in network engineering and cybersecurity.
The students can push their exercises to the Academy DevOps & SRE GIT project. For this module, create a folder with your username as its name in the following subfolder: https://github.com/Garanti-Del-Talento/gdt_academy