Cybersecurity & Ethical Hacking
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$nmap -sV -sC target.com
Starting Nmap 7.94 scan...
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 8.9
80/tcp open http nginx 1.24
443/tcp open https nginx 1.24
$gobuster dir -u https://target.com -w wordlist.txt
✓ /admin (Status: 302)
✓ /api/v1 (Status: 200)
⚠ /backup (Status: 200) ← Investigate
$learn more at guardyk.com
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All Tutorials
Latest Tutorials
Ethical Hacking
280
How to Install Kali Linux on VirtualBox
Learn how to install Kali Linux on VirtualBox step by step, even if it's your first time setting up a virtual machine. This guide covers both installing Kali using the ISO file and using the pre-built VM, so you can quickly create a safe environment for practicing cybersecurity and penetration testing.
Network Hacking & Security
194
What Are Hosts in Cybersecurity?
This tutorial explains what hosts are in cybersecurity, why every network-connected device is a potential attack surface, and how attackers target them. It also covers defensive strategies like host hardening, EDR, patch management, and asset discovery to protect organizational networks.
Open Source Intelligence (OSINT)
302
The Dark Web: A Beginner's Guide to Accessing & Navigating It
The dark web sounds scarier than it is. In this guide, I show you how to access it using Tor, and take you on a tour of some of the wildest sites hiding beneath the surface of the internet.
Open Source Intelligence (OSINT)
481
Dark Web vs Deep Web: What's the Actual Difference?
Confused about the dark web and deep web? You're not alone. Most people use these terms interchangeably, but they're completely different things. This guide breaks down the actual differences, size comparisons, and what you'll really find in each part of the hidden internet.
Open Source Intelligence (OSINT)
253
Searching for a Trafficked Person Using Open Source Intelligence (OSINT)
Learn how Open Source Intelligence (OSINT) can be used to locate missing or trafficked persons by analyzing publicly available data such as phone numbers, online ads, images, and social media traces. It explains real-world techniques, tools, and investigation strategies that turn scattered digital footprints into actionable leads.
Ethical Hacking
676
How to Create and Use Wordlists for Password Testing
Learn to create and use wordlists for authorized password testing. This guide covers built-in wordlists like rockyou.txt, generating custom wordlists with Crunch, and understanding why password predictability matters for security.
Ethical Hacking
767
Preparing for Your Next Web Pentest
A practical guide to pre-attack reconnaissance: setting engagement rules, Google dorking, discovering subdomains and endpoints, identifying tech stacks and WAFs, and mining JS files for secrets using tools like Subfinder, Wayback Machine, and Wappalyzer.
Ethical Hacking
1.6k
Step-by-Step Metasploitable2 Exploitation Guide for Penetration Testing and Vulnerability Assessment
A complete, beginner-friendly penetration testing tutorial for cybersecurity students, SOC analysts, and aspiring penetration testers.
Ethical Hacking
653
How to Crack Locked PDFs
Learn how to crack password‑protected PDFs using pdfcrack. This concise guide covers PDF encryption basics, how pdfcrack approaches password cracking and choosing wordlists.
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Digital Forensics
Ethical Hacking
Network Hacking & Security
Open Source Intelligence (OSINT)