audit-vps-script

Scans your server to find common issues like weak SSH settings, missing firewalls, lack of updates, and more. Perfect for getting your VPS ready for production.

Usage

1. Download the script

$ curl -O https://raw.githubusercontent.com/healthyhost/audit-vps-script/main/audit.sh

2. Make it executable:

$ chmod +x audit.sh

3. Run the security audit:

$ sudo ./audit.sh

Web

Visit https://auditpvps.com to run checks through our web app for free and render the results in your browser.

Requirements

• Ubuntu/Debian-based distributions
• jq (temporary dependency, planned for removal)
• Root or sudo privileges

Security checks

The scripts perform the following checks:

• Root
  • Check that non-root sudo user exists
• Firewall (UFW)
  • Check that UFW is installed
  • Check that UFW is enabled
  • Check that incoming traffic is blocked
• SSH
  • Check that SSH is enabled
  • Check that key-based authentication is enabled
  • Check that root login is disabled
  • Check that password authentication is disabled
  • Check that SSH is listening on port 22
• Fail2Ban
  • Check that Fail2ban is installed
  • Check that Fail2ban is enabled
  • Check that Fail2ban is configured correctly
  • Check that Fail2ban SSH is enabled
  • Check that Fail2ban SSH is in aggressive mode
• Access control
  • Check that /etc/passwd is readable by everyone
  • Check that /etc/shadow is readable by root only
• System updates
  • Check that automatic system updates are enabled
  • Check that automatic system upgrades are enabled
• Port security
  • Checks that insecure ports are not open

Contributing

We welcome contributions! If you have any suggestions or improvements, please open an issue or submit a pull request.

License

MIT

Roadmap

• Support for additional Linux distributions:
  • RHEL/CentOS
  • Fedora
  • Alpine Linux
• Removal of jq dependency
• Warning states (WARN) for non-critical security recommendations
• Code refactoring to improve readability