Sharing notes from my ongoing learning journey — what I build, break and understand along the way.
Python Basics – Part 7: Keywords, Strings, Debugging, and Packages In this week’s Python training notes, we’ll cover several essential yet often overlooked topics — Python’s reserved keywords, powerful string operations, debugging techniques, and how to install and use external…
Python Basics – Part 6: Type Conversion and Lists In this part of my 5-week Python training series, we’ll cover two key concepts that appear everywhere in Python:type conversion (casting) and lists, one of the most important data structures. Type…
Python Basics – Part 5: Random Numbers, String Formatting, and Input/Output In this lesson from my 5-week Python training series, we’ll explore three practical topics that bring programs to life:random number generation, formatted strings (f-strings), and user input’ll also end…
Python Basics – Part 4: Loops in Python (for, while, break, continue) In this part of my 5-week Python training series, we explore one of the most important programming structures — loops.Loops allow you to repeat actions efficiently, handle sequences,…
Python Basics – Part 3: Conditional Statements (if, elif, else) In this part of my 5-week Python training notes, we’ll look at conditional statements – how to make decisions in your code using if, elif, and else.These are part of…
Python Basics – Part 2: Operators in Python As part of my 5-week Python training course, these notes cover the most important Python operators — from arithmetic and string operations to logical and comparison operators.We’ll also look at assignment shortcuts,…
Python Basics – Part 1: Comments, Variables, and Data Types Over the next few weeks, I’ll be sharing my notes from a 5-week Python training course.Throughout the course, we covered fundamental programming concepts and practical examples step by step.From time…
Understanding IPsec Step by Step: Encryption, Tunnels, IKE, ESP, and More Sending data over the internet often means traveling through an environment full of risks. Our information passes through routers, switches, service providers, and various networks before it reaches its…
Understanding DPI Firewall: How Deep Packet Inspection Works and Why It Matters What Is DPI? A High-Level Overview DPI (Deep Packet Inspection) is a technology that analyzes network packets beyond basic headers, diving into the actual content (payload) of the…
Understanding WhatsApp’s Hybrid Encryption: Symmetric + Asymmetric Made Clear You’ve seen the famous WhatsApp line: “Your messages are end-to-end encrypted.” Sounds comforting, but for most people it basically means: “Okay… I think my chats are safe?” There’s actually a very…