InetMonit: Automated Internet Connection Monitor for Linux Systems

A robust, lightweight Linux shell script that automatically monitors Internet connectivity and manages system reboots for unattended servers. Perfect for headless Raspberry Pi, remote servers, and IoT devices.

🌟 Key Features

• 🔍 Intelligent Network Monitoring

  • Real-time ICMP ping checks to verify internet connectivity
  • Configurable target hosts (default: Google DNS 8.8.8.8)
  • Smart failure detection with customizable retry attempts

• 🔄 Automated Recovery System

  • Self-healing through automatic system reboots
  • Configurable failure thresholds
  • Zero human intervention required

• 📊 Comprehensive Logging

  • Detailed timestamp-based logging
  • Easy-to-analyze log format
  • Built-in log rotation support

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� Quick Start Guide

Installation

# Clone the repository
git clone https://github.com/proars/inetmonit.git

# Make the script executable
chmod +x inetmonit.sh

# Move to system directory (optional)
sudo mv inetmonit.sh /usr/local/bin/

Configuration

1. Customize Settings (Optional)

   # Open the script in your favorite editor
   nano inetmonit.sh

   Adjust these variables according to your needs:

   TARGET="8.8.8.8"     # Target host for ping tests
   RETRIES=3           # Number of failed attempts before reboot
   LOGFILE="/var/log/inetmonit.log"  # Log file location

2. Schedule Monitoring

   # Open crontab editor
   crontab -e

   Add one of these lines:

   # Check every 5 minutes
   */5 * * * * /usr/local/bin/inetmonit.sh
   
   # OR check every 30 minutes
   */30 * * * * /usr/local/bin/inetmonit.sh

3. Set Up Log Rotation Create a new logrotate configuration:

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🧪 Usage Guide

Manual Testing

# Run the script manually
sudo /usr/local/bin/inetmonit.sh

# Monitor the logs
tail -f /var/log/inetmonit.log

# Check last 20 log entries
tail -n 20 /var/log/inetmonit.log

💻 System Requirements

• Operating System: Linux (Compatible with Debian, Ubuntu, Raspberry Pi OS, and most POSIX systems)
• Required Tools:
  • ping utility (pre-installed on most systems)
  • cron service
  • logrotate (recommended for log management)
• Permissions: Root access for system reboot functionality

� Contributing

We welcome contributions to make InetMonit even better! Here's how you can help:

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

� License

This project is licensed under the MIT License - see the LICENSE file for details.

⭐ Support the Project

If you find InetMonit useful, please consider:

• Giving it a star on GitHub
• Sharing it with others who might benefit
• Contributing to its improvement

📞 Contact & Support

• Create an issue for bug reports or feature requests
• Star the repository to show your support
• Fork the project to contribute improvements