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Cyber Security
Ethical hacking, Kali Linux, Metasploit, Nmap and bug bounty write-ups. This is where Ceos3c started in 2016, and the best guides still get updated. New to security? Start with Getting Started with Cyber Security and Top Things to Do After Installing Kali Linux.
52 posts, page 1 of 6
- #Cyber Security
Top Things to do After Installing Kali Linux in 2026
The top things to do after installing Kali Linux in 2026: fix the new signing key, harden your setup, and install the tools that actually matter.
12 min - #Cyber Security
Best Hacking Books in 2026: The Definitive List
The best hacking books in 2026, every one actually read. Ranked by difficulty with reading paths for bug bounty, pentesting, and OSCP prep.
15 min - #Cyber Security
Nmap Tutorial Series 1: Nmap Basics
The first part of the Nmap Tutorial Series. In this part we are going over the Nmap installation and over all the basic Nmap scan modules.
6 min - #Cyber Security
Thriving in the Age of Cyber Threats: A Deep Dive into Cybersecurity
In today’s digitally advanced era, the concept of cybersecurity has become increasingly significant. As the world becomes further digitized, the potential risks of cybercrime rise. This underscores the importance of understanding cybersecurity, how it works, and how it can be implemented to protect data and digital systems. Among the key arsenal in a cybersecurity expert’s …
2 min - #Cyber Security
The different Phases of a Penetration Test
Time to talk a little bit about the different Phases of a Penetration Test and shed some light on the typical penetration tester workflow.A Penetration Test is usually split into different Phases. Read on to learn more.
4 min - #Cyber Security
Check protocol versions with Netcat
After learning how to scan for open ports with Netcat, we will now also learn how to Scan Service Versions with Netcat.
1 min - #Cyber Security
Basic Pentesting 1 Walkthrough
Today I want to try my first CTF walkthrough. I choose the relatively new Basic Pentesting 1 VM from Vulnhub. This CTF is aimed towards beginners and the goal is to get root privileges (boot2root) on the machine. I will take you with me through my workflow.
1 min - #Cyber Security
Basic Pentesting 2 Walkthrough
A complete Basic Pentesting 2 Walkthrough. I’ll show you every step I took to solve the Basic Pentesting 2 CTF.
6 min - #Cyber Security
Vulnerability Scanning With Metasploit
Vulnerability Scanning with Metasploit and OpenVAS. I show you how to use OpenVAS right inside of the Metasploit Framework to scan for vulnerabilities.
4 min - #Cyber Security
Information Gathering with Metasploit: Shodan
Learn the importance of Information Gathering with Metasploit. In this Article you learn how to use Shodan with Metasploit.
2 min