Internet Safety & Security
Comprehensive tools and guides to protect yourself in the digital world
CERT & Security Information
🔐 SSL Certificate Information
Let's Encrypt (R3)
www.xxmxli.com
ECDSA with P-256
~90 days from issuance
Certificate automatically renewed by GitHub Pages. Check current status: SSL Labs Test
🛡️ Computer Emergency Response Team (CERT)
CERT-FI (Finland)
National CERT for Finland - handles cybersecurity incidents and provides security guidance.
GitHub Security
For security issues related to GitHub Pages hosting.
🚨 Incident Reporting
If you discover a security vulnerability or incident on this website:
- Document the issue with screenshots and steps to reproduce
- Contact the website administrator through the contact form above
- For critical security issues, contact CERT-FI directly
- Do not publicly disclose vulnerabilities before they are fixed
DNS Security Setup
Comprehensive DNS security and privacy configuration tool with DNS-over-HTTPS/TLS support, multiple providers, and filtering capabilities.
System Hardening Tool
Complete Linux system hardening script with SSH security, firewall configuration, kernel protection, and audit logging.
Network Monitor
Real-time network traffic monitoring and security analysis tool with packet capture, bandwidth monitoring, and intrusion detection.
Secure Tunneling Tool
SSH tunnel and VPN management tool with SOCKS proxy, port forwarding, and secure communication setup.
Encryption Tools
File and folder encryption toolkit with AES encryption, GPG operations, secure deletion, and encrypted vault management.
DNS Security Setup (Windows PowerShell)
Windows DNS security configuration with DNS-over-HTTPS/TLS support, multiple providers and comprehensive filtering capabilities.
System Hardening (PowerShell)
Windows system hardening with PowerShell security policies, Windows Defender configuration, and firewall rules.
PowerShell Usage Guide
Comprehensive guide for using PowerShell security scripts with execution policies, troubleshooting, and best practices.
Windows Advanced Security Suite
Complete Windows security toolkit including firewall rules, registry security, user account management, and system diagnostics.
Important Security Notice
This system is actively monitored and protected.
Any unauthorized access attempts, network scanning, intrusion, or abusive activity will be logged and reported to the appropriate authorities.
IP Blacklist Processor (Python)
Cross-platform Python script that processes multiple IP blacklist sources and generates JavaScript blocklists for web protection.
IP Blacklist Processor (Windows PowerShell)
Windows PowerShell script with firewall integration and hosts file generation for comprehensive Windows protection.
Complete Safety Toolkit
All tools and scripts bundled together in a convenient package for easy deployment.
Legal Warning: These tools are for educational and legitimate network administration purposes only. Unauthorized use may violate laws and terms of service. Always obtain proper authorization before use.