- Complete rewrite of secharden-2fa.sh with full 2FA implementation
- SSH 2FA using Google Authenticator with publickey + TOTP authentication
- Cockpit web interface 2FA with custom PAM configuration
- Webmin 2FA support with automatic detection and configuration
- User setup automation with QR codes and backup codes generation
- Gradual rollout support using nullok for phased deployment
- Automatic configuration backup and restore procedures
- Add 2fa-validation.sh security test for comprehensive validation
- Create TSYS-2FA-GUIDE.md with complete implementation documentation
- Add DEVELOPMENT-GUIDELINES.md with coding standards and best practices
- Optimize package installation with single apt-get commands for performance
The 2FA implementation provides enterprise-grade security while maintaining
usability and proper emergency access procedures. Includes comprehensive
testing, documentation, and follows established security best practices.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
