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Focuses on basic Linux command-line and file manipulation skills. Walkthrough of each level of Over the Wire's the Bandit series. It's a CLI game which helps players master Linux, SSH, and much more.

Cross-Site Request Forgery (CSRF) is a web vulnerability where attackers trick users into submitting unwanted actions on a web application where they are authenticated. This guide explains how CSRF works, the risks it poses, and how to protect your applications using strategies like anti-CSRF tokens and same-site cookies.

OverTheWire is an online platform that hosts a collection of war-games designed to teach security concepts, Linux command-line skills, and basic hacking techniques in a hands-on way. The games are structured to progressively increase in difficulty, helping users learn and practice:

Cross-Site Scripting (XSS) is a common web vulnerability where attackers inject malicious scripts into trusted websites. This guide explains how XSS works, particularly stored XSS, and how attackers can steal user data by tricking the browser into executing malicious code.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Why showing is better than telling—how demos improve collaboration, bug reports, and feedback in software development.

Learn what bike shedding means, why it happens in teams, and how to avoid wasting time on trivial issues.

A practical guide to defining, running, and improving sprints in agile software teams.

How to install a virtual machine on an M1 Mac/ARM64 machine

A concise guide to the essential principles of system design, covering scalability, reliability, maintainability, availability, and trade-offs. This post introduces the core building blocks you need to design robust, efficient, and scalable systems—crucial knowledge for system design interviews.

A concise guide to the essential processes of system design, covering scalability, reliability, maintainability, availability, and trade-offs. This post introduces the core building blocks you need to design robust, efficient, and scalable systems—crucial knowledge for system design interviews.

Discover how order books work in financial markets, how they match buyers and sellers, and why understanding price levels, book depth, and the bid-ask spread is essential for traders and investors.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Solving Leetcode problems to syntax of multiple languages and data structures & algorithms.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Solving programming problems in multiple languages to master syntax, data structures, and algorithms.

Learn how PostgreSQL extends standard SQL with advanced features, reliability, and open-source flexibility. This guide covers practical commands, differences from generic SQL, and tips for effective database work.