This course is aimed at beginners and students who wish to understand web cybersecurity in a practical, progressive and structured way. The goal is not to learn techniques by heart, but to understand how a web application works and how to reason when faced with a security problem. We will be discussing, in particular: • the basics of HTTP: requests, responses, methods, cookies and sessions; • Authentication vs. Authorization; • Getting started with Burp Suite Community; • Broken Access Control; • IDOR and BOLA; • horizontal and vertical privilege escalation; • roles, permissions and ownership; • Security API basics; • bug bounty methodology; • drafting a clear vulnerability report. The exercises are performed in dedicated learning labs, CTFs, or explicitly authorized environments. My method is based on a simple line of reasoning: Actor → Action → Object → Expected Authorization Each session alternates between explanations, demonstrations, practical exercises with Burp Suite and guided correction. The program can be adapted to the student's level, from the discovery of Web cybersecurity to the first methodologies of BAC/IDOR vulnerability research.

This course is aimed at students, technology enthusiasts and professionals in career transition who wish to demystify the world of networks and telecommunications. The main objective is to make this discipline concrete, accessible and directly applicable. What you will learn: - Decode the architecture of modern mobile networks (4G, 5G) and data networks. - Analyze the essential communication protocols that make the Internet work on a daily basis. - Master the basics of transmissions (fiber optics, wireless links, routing). My teaching method: If you're a complete beginner or these concepts seem too abstract, don't worry. We'll go through each key concept step by step. I use simple visual diagrams, everyday analogies, and practical examples to avoid unnecessary jargon. My goal is to build your confidence and transform theory into real-world skills, all within a supportive and stimulating learning environment.

Are you studying SMR, ASIR/ASIX, DAM, DAW, Computer Engineering or other technology training and need help with systems, networks or infrastructure? I'm Nuria, a computer science teacher with over 10 years of teaching experience and professional experience in systems administration. Classes are online, one-on-one, and fully tailored to your syllabus, level, and goals. We can work on content such as: * Linux and systems administration; * Windows and Windows Server; * users, groups, permissions, processes and services; * TCP/IP networks, addressing and subnetting; * DNS, DHCP, routing, NAT and network services; * server administration and deployment; * virtualization and virtual machines; * Docker, containers, and Docker Compose; * scripting and automation with Bash or PowerShell; * storage, backups and recovery; * log monitoring and analysis; * cloud computing and infrastructure concepts; * firewalls and network security; * Linux and server hardening; * cybersecurity and best practices; * Diagnosis and resolution of incidents. The classes are primarily practical. I don't want you to memorize a list of commands or steps: we'll work towards you understanding what's happening, knowing where to look when something goes wrong, and being able to gradually arrive at a solution on your own. We can start from scratch, prepare a subject or exam, solve a specific practice, configure an environment or set up laboratories where you can practice the content you are studying. In addition to the classes, you will have access to our educational platform with its own documentation, notes, exercises, examples, practices and other resources to continue working between sessions.