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Lorenzo Iovino 2025-04-21 22:08:09 +02:00
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# wol-delemaco
Script to boot delemaco
![Server Status Screenshot](https://placeholder-for-screenshot.png)
## Features
- **Status Monitoring**: Real-time status checks to determine if your server is online or offline
- **Wake-on-LAN**: Boot your server remotely with the click of a button
- **Remote Shutdown**: Safely shut down your server when it's not needed
- **Responsive UI**: Simple, mobile-friendly interface with color-coded status indicators
- **Lightweight**: Built with Go for minimal resource usage, perfect for Raspberry Pi Zero
## Requirements
- Raspberry Pi (Zero, 2, 3, 4, etc.)
- Go (version 1.16 or higher)
- wakeonlan utility
- SSH access to the target server (for shutdown functionality)
- Target server configured for Wake-on-LAN
## Installation
### 1. Install Dependencies
```bash
sudo apt update
sudo apt install golang-go wakeonlan
```
### 2. Clone the Repository
```bash
git clone https://github.com/yourusername/wol-server.git
cd wol-server
```
### 3. Configure the Application
Edit the constants in `main.go` to match your server:
```go
const (
serverName = "yourserver" // Hostname or IP address of your server
macAddress = "xx:xx:xx:xx:xx:xx" // MAC address of your server's network interface
port = "8080" // Port to run the web application on
)
```
### 4. Build the Application
```bash
go build -o wol-server
```
### 5. Set Up as a System Service
Create a systemd service file:
```bash
sudo nano /etc/systemd/system/wol-server.service
```
Add the following content (adjust paths if needed):
```
[Unit]
Description=WOL Server Go Application
After=network.target
[Service]
User=pi
WorkingDirectory=/home/pi/wol-server
ExecStart=/home/pi/wol-server/wol-server
Restart=always
[Install]
WantedBy=multi-user.target
```
Enable and start the service:
```bash
sudo systemctl enable wol-server
sudo systemctl start wol-server
```
## SSH Configuration for Remote Shutdown
For the shutdown functionality to work, you need to set up password-less SSH:
1. Generate an SSH key on your Raspberry Pi:
```bash
ssh-keygen -t rsa
```
2. Copy the key to your target server:
```bash
ssh-copy-id user@yourserver
```
3. Configure sudo on the target server to allow password-less shutdown:
```bash
# On the target server, run:
sudo visudo
# Add this line (replacing 'user' with your username):
user ALL=(ALL) NOPASSWD: /sbin/shutdown
```
## Usage
Access the web interface by navigating to `http://raspberry-pi-ip:8080` in your browser.
The interface provides:
- Current server status (Online/Offline)
- Boot button - sends a Wake-on-LAN magic packet to your server
- Shutdown button - safely shuts down your server via SSH
- Refresh button - manually updates the status display
## Troubleshooting
- **Server won't boot**:
- Verify that Wake-on-LAN is enabled in your server's BIOS/UEFI
- Confirm the MAC address is correct
- Check if your router blocks Wake-on-LAN packets
- **Shutdown doesn't work**:
- Verify SSH key setup
- Check sudo configuration on target server
- Test manual SSH command: `ssh user@server sudo shutdown -h now`
- **Web interface not accessible**:
- Ensure the service is running: `sudo systemctl status wol-server`
- Check for firewall rules blocking port 8080
- Verify the Raspberry Pi is connected to the network
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
## License
This project is licensed under the MIT License - see the LICENSE file for details.
## Acknowledgments
- Inspired by the need for a simple, lightweight server power management tool
- Thanks to the Go community for the excellent standard library that makes web development straightforward