This repository contains a series of projects relative to network security (attack and mitigation). For a period of 6 intense weeks, every week I worked on the development of different projects related to network security, by studying vulnerabilities and countermeasures in networking systems and communication protocols, I developed a set of active defence mechanisms to protect a system on different layers.
The project's complexity grows with the increase of their numbering, hence the project #6 is more intricate than #1.

All the codes developed were written in C++ and/or Python on a Linux OS.
Every projects folder contains the following files:

• Description document which defines the guidelines/deliverables and in some cases input and example of output files.
• The project source code

• Project 1: DNS packet capture and fields parsing (byte level malicious detection)
• Project 2: Dynamic ARP Inspection Module
• Project 3: ARP-request reply attack defence (WEP)
• Project 4: DDoS mitigation (iptables - bloom filters - longest prefix match trie)
• Project 5: Traffic fingerprinting of TLS flows (Markov chains)
• Project 6: IPS for SYN flood mitigations (Statical/Behavioral/Cookies protections)