Learning Path Overview
Our comprehensive tutorials are designed to take you from beginner to advanced practitioner. Each section builds upon the previous, creating a structured learning experience.
Network Scanning Fundamentals
Learn the basics of network discovery and reconnaissance
Vulnerability Assessment
Identify and evaluate security weaknesses
Ethical Hacking Principles
Learn responsible security testing methodologies
Raspberry Pi Security Setup
Configure your hardware for cybersecurity operations
Network Scanning Fundamentals
Learn the foundation of cybersecurity assessment through network discovery and reconnaissance
Understanding Network Discovery
Network discovery is the process of identifying active devices on a network. This is typically the first step in any security assessment.
Key Concepts:
Essential Nmap Commands
Nmap is the most popular network scanning tool. Here are essential commands for beginners:
nmap -sn 192.168.1.0/24
nmap 192.168.1.1
nmap -sV 192.168.1.1
nmap -O 192.168.1.1
nmap -sS -sV -O -A 192.168.1.1
Understanding Scan Types
Different scan types serve different purposes in network reconnaissance:
Stealthy scan that doesn't complete TCP handshake
Full TCP connection scan
Scans for open UDP ports
Sends FIN packets to evade firewalls
Vulnerability Assessment Fundamentals
Learn to identify and evaluate security weaknesses in systems and networks
Assessment Process
A systematic approach to identifying and evaluating security vulnerabilities:
Asset Discovery
Identify all assets in the target environment
Vulnerability Scanning
Use automated tools to find known vulnerabilities
Manual Testing
Perform additional manual checks
Risk Assessment
Evaluate the risk level of identified vulnerabilities
Reporting
Document findings and provide remediation recommendations
Common Vulnerability Types
Understanding common vulnerability categories helps in systematic assessment:
Outdated software with known security flaws
Improperly configured systems and services
Poor password policies and authentication mechanisms
Insecure network protocols and configurations
SQL injection, XSS, and other web vulnerabilities
Using Bjorn for Assessment
Bjorn automates many vulnerability assessment tasks:
Ethical Hacking Principles
Learn responsible security testing methodologies and legal considerations
Legal and Ethical Considerations
Important Legal Notice
Only perform security testing on systems you own or have explicit written permission to test. Unauthorized access to computer systems is illegal in most jurisdictions.
Always obtain proper written authorization before testing
Clearly define what systems and methods are permitted
Report vulnerabilities responsibly to system owners
Keep detailed records of all testing activities
Penetration Testing Methodology
A systematic approach to penetration testing ensures thorough and consistent results:
Planning and Reconnaissance
Gather information about the target
Scanning
Identify live systems and open ports
Enumeration
Extract detailed information about discovered services
Vulnerability Assessment
Identify potential security weaknesses
Exploitation
Attempt to exploit identified vulnerabilities
Post-Exploitation
Determine the extent of compromise
Reporting
Document findings and provide recommendations
Common Attack Vectors
Understanding common attack methods helps in both offensive and defensive security:
Exploiting network protocols and services
Targeting web-based applications
Manipulating human behavior for access
Gaining physical access to systems
Targeting wireless networks and devices
Raspberry Pi Security Setup
Configure your hardware platform for professional cybersecurity operations
Initial Setup and Hardening
Start with a secure foundation for your Raspberry Pi:
System Updates
# Update system packages
sudo apt update && sudo apt upgrade -y
# Change default password
passwd
SSH Security
# Configure SSH securely
sudo sed -i 's/#PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config
sudo sed -i 's/#PermitRootLogin yes/PermitRootLogin no/' /etc/ssh/sshd_config
sudo systemctl restart ssh
Firewall Setup
# Setup firewall
sudo ufw enable
sudo ufw default deny incoming
sudo ufw default allow outgoing
sudo ufw allow ssh
Installing Security Tools
Install essential cybersecurity tools for your Raspberry Pi:
Network Scanning Tools
sudo apt install nmap masscan
Vulnerability Scanners
sudo apt install nikto dirb gobuster
Network Analysis Tools
sudo apt install wireshark tcpdump
Web Application Testing
sudo apt install sqlmap burpsuite
Network Configuration
Configure your Raspberry Pi for security testing:
Use a separate network for testing to avoid affecting production systems
Configure VPN for secure remote access to your testing environment
Set up traffic monitoring and logging for analysis and compliance
Secure wireless connections and configure for penetration testing