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Cybersecurity is a rapidly evolving field, and having the right tools is essential for professionals and enthusiasts alike. Here are eight free software tools that can help you enhance your cybersecurity skills:
1. Operating System – Kali Linux
Kali Linux is a Debian-based Linux distribution designed for penetration testing and security auditing. It comes preloaded with hundreds of cybersecurity tools.
You Should Know:
- Install Kali Linux:
sudo apt update && sudo apt install kali-linux-default
- Basic commands:
nmap -sV <target_IP> Scan for services msfconsole Launch Metasploit Framework
2. Email Security – Dehashed
Dehashed helps you check if your email or password has been exposed in data breaches.
You Should Know:
- Use Dehashed API for automation:
curl -H "Authorization: Bearer YOUR_API_KEY" "https://api.dehashed.com/[email protected]"
3. Web Hacking – Burp Suite
Burp Suite is a powerful platform for web security testing. The Community Edition is free.
You Should Know:
- Launch Burp Suite:
java -jar burpsuite_community.jar
- Configure Firefox to route traffic through Burp Proxy (127.0.0.1:8080).
4. Port Scan – Nmap
Nmap is the go-to tool for network discovery and security auditing.
You Should Know:
- Basic scan:
nmap -A -T4 <target_IP>
- Detect OS:
nmap -O <target_IP>
5. Training – Hack The Box
Hack The Box offers virtual labs for penetration testing practice.
You Should Know:
- Connect via OpenVPN:
sudo openvpn your_lab.ovpn
6. Data Modification – CyberChef
CyberChef is a web-based tool for data analysis and manipulation.
You Should Know:
- Use it offline by downloading the GitHub repo:
git clone https://github.com/gchq/CyberChef.git
7. Intrusion Detection System – Snort
Snort is an open-source IDS/IPS.
You Should Know:
- Basic Snort command:
snort -A console -q -c /etc/snort/snort.conf -i eth0
8. Firewall/Router – pfSense
pfSense is a free firewall and router platform.
You Should Know:
- Block an IP:
pfctl -t blocklist -T add <malicious_IP>
What Undercode Say
Cybersecurity tools are only as effective as the knowledge behind them. Mastering Kali Linux commands, automating Dehashed checks, and leveraging Nmap for reconnaissance are fundamental skills. Always practice ethically:
- Linux Command for Log Analysis:
grep "Failed password" /var/log/auth.log Check brute-force attempts
- Windows Command for Network Security:
netstat -ano | findstr LISTENING Check open ports
- Firewall Rule (Linux):
iptables -A INPUT -p tcp --dport 22 -j DROP Block SSH brute force
Expected Output:
A well-equipped cybersecurity toolkit includes Kali Linux, Burp Suite, Nmap, and Snort. Continuous learning through Hack The Box and automated checks with Dehashed ensures you stay ahead in securing systems.
Relevant URLs:
References:
Reported By: Lucky Keneth – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
