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This blog serves as a knowledge hub for both seasoned professionals and aspiring tech enthusiasts, offering practical insights, technical tutorials, and industry analysis. Join the conversation and stay ahead of the curve.

Understanding ICMP: The Network's Messenger

Understanding ICMP: The Network's Messenger

In this blog post, I'll break down ICMP in simple terms, provide Linux code examples to demonstrate its use, and include relevant images to make it all crystal clear.

ICMP

Articles Explorer

Our newest blog post offers a comprehensive look at software engineering, from foundational concepts to advanced methodologies. Join us as we dissect the intricacies of this dynamic field.

Podman vs Docker in 2025: Which Container Engine Should You Choose?

Podman vs Docker in 2025: Which Container Engine Should You Choose?

Compare Podman vs Docker in 2025: Explore key differences, security, architecture, and practical code examples to choose the best container engine for your projects.

Podman vs Docker Podman tutorial Docker tutorial container engines comparison
The Ultimate Guide to FFmpeg

The Ultimate Guide to FFmpeg

Discover the ultimate FFmpeg guide with real-world code examples. Learn how to convert, edit, compress, and stream audio and video files using FFmpeg commands and automation.

FFmpeg FFmpeg tutorial video conversion audio extraction
Nmap for Network Security Audits

Nmap for Network Security Audits

Learn advanced Nmap techniques for network security audits, including basic scans, port scanning, OS detection, and more. Expert guide with actionable commands.

Nmap network security port scanning Kali Linux
Save iptables Rules After Reboot

Save iptables Rules After Reboot

Learn how to save iptables rules after reboot using iptables-persistent, iptables-save, and netfilter-persistent. Fix common issues like service iptables-save not working or iptables-save permission denied.

save iptables rulesiptables
Edit a Rule in iptables

Edit a Rule in iptables

Learn how to edit a rule in iptables on Ubuntu with step-by-step instructions, examples, and expert tips. Perfect for advanced users managing firewall configurations.

Edit a rule in iptables
Iptables --sport vs --dport

Iptables --sport vs --dport

Learn the differences between iptables --sport and --dport, handle multiple ports, troubleshoot errors, and optimize firewall rules. Perfect for experts.

iptables --sport and --dport
Iptables Port Redirection: A Comprehensive Guide

Iptables Port Redirection: A Comprehensive Guide

Learn how to use iptables for port redirection on Ubuntu. Explore examples like redirecting port 80 to 8080, changing destination IPs, and modifying source ports.

iptables change a destination port Port of outgoing and incoming packets Linux iptables Port Redirection Example Iptables port forwarding
Nginx Rate Limit: A Comprehensive Guide

Nginx Rate Limit: A Comprehensive Guide

Learn how to implement Nginx rate limiting to protect your server from excessive traffic, DDoS attacks, and abuse. Step-by-step guide with examples.

Nginx Nginx rate limit rate limiting Nginx traffic control
Send HTTP Requests in Node.js Without Using an External Library

Send HTTP Requests in Node.js Without Using an External Library

Learn how to send HTTP requests in Node.js without using external libraries like Axios. This guide covers GET, POST, and handling different content types using native http and https modules. Perfect for lightweight, dependency-free solutions.

Node.js HTTP requestSend HTTP request without external libraryNode.js native HTTP module
How to Configure NGINX and Next.js

How to Configure NGINX and Next.js

Learn how to configure NGINX and Next.js step-by-step. This guide covers everything from basic setup to advanced optimizations for seamless deployment.

NGINX NGINX and Next.js Configure NGINX and Next.js NGINX reverse proxy
Top 20 Git Commands with Examples

Top 20 Git Commands with Examples

Master Git with the top 20 essential commands for version control and collaboration. Learn Git init, add, commit, branch, merge, rebase, stash, and more with practical examples. Boost your productivity as a developer!

Git commands Git tutorial version control Git for developers
Node.js REST API Implementation

Node.js REST API Implementation

Learn how to implement a simple REST API in Node.js without using external libraries or a database. Step-by-step guide for building efficient APIs with the built-in http module.

Node.js REST API implementation Node.js API tutorial REST API without database Node.js http module
Node.js HTTP Server Implementation from Scratch

Node.js HTTP Server Implementation from Scratch

Learn how to implement an HTTP server from scratch in Node.js with step-by-step guidance. Enhance your skills with examples on routing, POST handling, and graceful shutdowns.

Node.js HTTP server HTTP server from scratch Node.js tutorial HTTP server implementation
SipHash and Other Lightweight Hashing Algorithms: A Comparison

SipHash and Other Lightweight Hashing Algorithms: A Comparison

Discover the world of lightweight hashing algorithms, including SipHash, BLAKE2, Skein, Poly1305, and FarmHash. Compare their speed, security, simplicity, and footprint to find the best fit for your applications.

SipHashBLAKE2Skein
TEA: A Lightweight Encryption Option

TEA: A Lightweight Encryption Option

Learn about TEA, a lightweight encryption algorithm, and compare it to other options like AES, DES, PRESENT, Blowfish, and Twofish. Discover its strengths, weaknesses, and when it's the best choice for your security needs.

TEAAESBlowfish
HTTP 1.x vs HTTP 2.x vs HTTP 3: A Comparison

HTTP 1.x vs HTTP 2.x vs HTTP 3: A Comparison

Learn the key differences between HTTP 1.x, HTTP 2.x, HTTP 3, and gRPC. Understand their features, performance implications, and best use cases.

HTTPHTTP 2HTTP 3
HTTP 1.x vs HTTP 2.x vs HTTP 3 vs gRPC: A Comparison

HTTP 1.x vs HTTP 2.x vs HTTP 3 vs gRPC: A Comparison

Discover the key differences between HTTP 1.1, HTTP 2.0, and HTTP 3.0. This comprehensive comparison table outlines the features, benefits, and advancements of each protocol.

HTTPgRPC
Handling Preflight Requests in Deno

Handling Preflight Requests in Deno

Learn how to handle preflight requests in Deno applications using TypeScript. This guide explains CORS, preflight requests, and provides a step-by-step tutorial to set up a server that manages cross-origin interactions seamlessly.

Preflight Requests cors deno nodejs
Understanding AES Encryption Modes: AES-GCM, AES-CBC, AES-CTR

Understanding AES Encryption Modes: AES-GCM, AES-CBC, AES-CTR

Explore the differences between AES-GCM, AES-CBC, and AES-CTR encryption modes. Learn when to use each, along with a comparison of performance, key size, resource usage, and usage scenarios.

Web Crypto API aes encryption modes aes encryption AES
Web Crypto API implement ECIES like in Javascript

Web Crypto API implement ECIES like in Javascript

Learn how to use the Web Crypto API to implement ECIES-like encryption and decryption in JavaScript. This article covers generating key pairs, deriving symmetric keys, and securely encrypting data using AES-GCM.

Web Crypto API ECIES ECDH AES
A Comparative Analysis of Asymmetric Encryption Algorithms

A Comparative Analysis of Asymmetric Encryption Algorithms

Discover the best asymmetric encryption algorithms like RSA, ECC, NTRU, and more. Compare key sizes, security, performance, and usage to choose the right encryption for your needs.

asymmetric encryption algorithms RSA vs ECC NTRU encryption elliptic curve cryptography
Implementing AES-GCM Encryption in JavaScript

Implementing AES-GCM Encryption in JavaScript

Learn how to implement AES-GCM encryption in JavaScript for secure data transmission. This comprehensive guide covers key generation, encryption, decryption, and verification.

JavaScript encryption Web Cryptography API AESAES-GCM
Understanding and Implementing ECDSA in Javascript Cryptography

Understanding and Implementing ECDSA in Javascript Cryptography

Cryptography ECDSA to create secure digital signatures in Javascript, Deno and Node.js. This comprehensive guide covers key generation, signing, and verification, providing practical examples and best practices.

JavaScript encryption Web Cryptography API ECDSA P-256 curve
JavaScript Cryptography using RSA-OAEP

JavaScript Cryptography using RSA-OAEP

Learn how to implement secure message encryption in JavaScript using the Web Cryptography API RSA-OAEP algorithm. This guide covers key generation, encryption, decryption, and validation processes for robust data protection.

JavaScript encryption Web Cryptography API RSA-OAEP key generation
Network Security: Key Components

Network Security: Key Components

Learn about the key components of network security solutions, including, Physical Security, SIEM, IDS, IPS, firewall, VPN, encryption, and more, and how they help protect your network from cyber threats.

Network Securityidsipsfirewall
Advanced Iptables Firewall rules

Advanced Iptables Firewall rules

Discover the power of Advanced Iptables Firewall Rules for robust network security. Learn SSH brute-force protection, SYN flood mitigation, and more. Elevate your defense today!

iptables firewall rules network security SSH brute-force
Basic Iptables Firewall rules

Basic Iptables Firewall rules

Explore essential Iptables firewall rules and commands to secure your Linux system. Learn practical examples, installation steps, and best practices for robust network protection.

IptablesFirewall RulesLinux SecurityNetwork Protection
What is Protocol TCP? A Comprehensive Overview

What is Protocol TCP? A Comprehensive Overview

Explore the significance of Protocol TCP in modern networking. Learn about its reliability, connection-oriented nature, and the three-way handshake process. Discover why TCP is essential for seamless data transmission.

Protocol TCPTransmission Control ProtocolTCP reliabilityConnection-oriented communication
Top Network Protocols You Need to Know with Python Examples

Top Network Protocols You Need to Know with Python Examples

This informative guide provides a beginner-friendly introduction to the essential protocols that power the internet and enable network communication. Learn the basics of TCP/IP, HTTP, FTP, and other key protocols, and gain a deeper understanding of how the digital world works.

networking protocols TCP/IP HTTP HTTPS
10 Must-Know Bash Scripting Tips and Tricks for Beginners

10 Must-Know Bash Scripting Tips and Tricks for Beginners

Discover the top 10 must-know tips and tricks bash shell scripting: Shebang Line, Variables and Variable Expansion, Command Substitution, Conditional Statements, Loops, Functions, Input and Output Redirection, Command-Line Arguments, Exit Status and Error Handling and Debugging.

bash shell scriptingbash scripting tipsbash scripting tricksbeginner bash scripting
30 Bash Script Examples to Elevate Your Scripting Skills

30 Bash Script Examples to Elevate Your Scripting Skills

Bash scripting with these 30 practical examples for beginner, you'll find valuable insights and ideas to enhance your productivity and streamline your workflow.

Bash script examplesBash scriptingBash commandsBash programming
Top 35 Linux Tips and Tricks

Top 35 Linux Tips and Tricks

In this article, we will explore 35 useful tips and tricks for the Linux console. These tips and tricks will cover various aspects of the Linux command line and will include code examples to demonstrate their usage.

Linux tipslinux tips and tricksfedora tipsLinux tricks

Latest code snippets

Explore a vast library of code snippets, organized by programming language and topic. Find inspiration, learn best practices, and streamline your coding process with our carefully selected examples.

Contact Us

Contact Us

I appreciate your interest in getting in touch! My preferred method of communication is email, which you can send to haikel.fazzani@zoho.com. Whether you have questions about my projects, talks or blog posts, or would like to discuss working together, I look forward to hearing from you.