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GitHub URL: HARDN – Debian Security Hardening Tool
HARDN-Endpoint is a powerful open-source tool designed to automate the security hardening of Debian 12 systems. It integrates STIG compliance, monitoring, and heuristics while maintaining high system availability.
You Should Know:
Key Features of HARDN-Endpoint
- Automated Hardening ā Reduces manual configuration errors.
- STIG Compliance ā Aligns with Security Technical Implementation Guides.
- Heuristic Monitoring ā Detects anomalies in real-time.
- High Availability ā Ensures system stability post-hardening.
Installation & Setup
1. Clone the Repository:
git clone https://github.com/OpenSource-For-Freedom/HARDN.git cd HARDN
2. Run the Installer:
sudo ./install.sh
3. Verify Hardening:
sudo hardn --audit
Essential Commands for Security Auditing
- Check System Vulnerabilities:
lynis audit system
- Verify Open Ports:
sudo ss -tulnp
- Scan for Rootkits:
sudo rkhunter --check
Automating Security with Cron Jobs
Add a daily security scan:
sudo crontab -e
Add:
0 3 /usr/bin/hardn --scan
STIG Compliance Checks
- Disable USB Storage (STIG Rule):
echo "install usb-storage /bin/true" | sudo tee /etc/modprobe.d/usb-storage.conf
- Enable Auditd Logging:
sudo systemctl enable auditd --now
What Undercode Say:
HARDN-Endpoint simplifies Debian 12 hardening, making it ideal for DevOps and SecOps teams. Combining automation with STIG compliance ensures enterprise-grade security.
Additional Linux Security Commands:
- Check User Login Attempts:
sudo lastb
- Verify File Integrity (AIDE):
sudo aide --check
- Disable IPv6 (If Unused):
echo "net.ipv6.conf.all.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf
Windows Equivalent (For Cross-Platform Teams):
- Enable Windows Defender Audit:
Set-MpPreference -DisableRealtimeMonitoring $false
- Check Open Ports (Windows):
netstat -ano
Expected Output:
A fully hardened Debian 12 system with automated compliance checks and real-time monitoring.
Reference:
References:
Reported By: Tburns Offsec – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ā



