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Docker and DevOps basics: containers vs VMs, images, the run lifecycle, Dockerfiles, volumes, Compose and networks — with a working MongoDB container as the companion example.

Cybersecurity fundamentals with a defensive focus: threat modeling (STRIDE), recon and scanning, DoS/DDoS, defense in depth, and the ethical/legal framework for testing.

UML basics: the diagram types that matter — use case, class, object, activity and sequence. Six self-contained lessons with PlantUML examples and design tasks.

Databases basics: ER modeling, relational design, SQL (SELECT/JOIN/DML) and a NoSQL/MongoDB lesson. Eight self-contained lessons with sqlite-runnable exercises and solutions.

Guided hands-on F# basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: fsharp, functional, dotnet, programming.

Guided hands-on C# basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: csharp, dotnet, programming, oop.

Guided hands-on C++ basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: cplusplus, cpp, systems, programming.

Guided hands-on C basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: c, systems, low-level, programming.

Guided hands-on JavaScript basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: javascript, web, ecmascript, programming.

Guided hands-on PHP basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: php, web, backend, programming.

Guided hands-on Python basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: python, scripting, data, programming.

Guided hands-on Java basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: java, oop, jvm, programming.

Guided hands-on CSS basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: css, web, styling, layout, flexbox, grid.

Guided hands-on HTML basics course: a numbered sequence of self-contained lessons, each with a README, starter code (before/) and a worked solution (after/). Ideal for beginners. Keywords: html, web, markup, semantic-html.

Practical Git learning guide covering version control foundations, GitHub, GitLab, branching, collaboration workflows and advanced command line usage.

On ongoing course project to give a little more than simple basic use of Git.

Tutorials I found informative.

Este proyecto es basicamente una api desarrollada en Laravel la cual gestiona login, singup, logout y crud de usuario que entran al sistema junto con un front desarrollado en ReactJS el cual valida permisos en rutas y gestiona el token en las consultas mediante un interceptor. Es un desarrollo bastante basico pero practico para tener como referencia en futuros desarrollos.

Probably the most modern and sophisticated insecure web application!

Clone of OWASP Juice Shop with GitLab branding and more.

Learn more by seeing our DevSecOps Tutorial

A hardcore, no-frills piece of code that lets you chuck files into a server like you're tossing bricks through the system's windows.