pollux/README.md
Jeena 1ed443ff2a Initial codebase structure
- Complete Gemini server implementation with logging
- Add comprehensive documentation (README.md, AGENTS.md)
- Implement certificate management guidelines
- Add .gitignore for security and build artifacts
- All unit tests passing (14/14)
- Ready for production deployment
2026-01-15 08:22:06 +09:00

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# Pollux - A Simple Gemini Server
Pollux is a lightweight Gemini server for serving static files securely. It supports TLS, hostname validation, and basic directory serving.
## Requirements
Rust 1.70+ and Cargo.
## Building
Clone or download the source, then run:
```bash
cargo build --release
```
This produces the `target/release/pollux` binary.
## Running
Create a config file at `/etc/pollux/config.toml` or use `--config` to specify a path:
```toml
root = "/path/to/static/files"
cert = "certs/cert.pem"
key = "certs/key.pem"
host = "gemini.jeena.net"
port = 1965
log_level = "info"
```
## Certificate Setup
### Development
Generate self-signed certificates for local testing:
```bash
mkdir -p certs
openssl req -x509 -newkey rsa:2048 -keyout certs/key.pem -out certs/cert.pem -days 365 -nodes -subj "/CN=localhost"
```
Update `config.toml`:
```toml
cert = "certs/cert.pem"
key = "certs/key.pem"
```
### Production
Use Let's Encrypt for production:
```bash
sudo certbot certonly --standalone -d yourdomain.com
```
Then update config.toml paths to your certificate locations.
Run the server:
```bash
./pollux --config /path/to/config.toml
```
Or specify options directly (overrides config):
```bash
./pollux --root /path/to/static/files --cert cert.pem --key key.pem --host yourdomain.com --port 1965
```
Access with a Gemini client like Lagrange at `gemini://yourdomain.com/`.
## Options
- `--config`: Path to config file (default `/etc/pollux/config.toml`)
- `--root`: Directory to serve files from (required)
- `--cert`: Path to certificate file (required)
- `--key`: Path to private key file (required)
- `--host`: Hostname for validation (required)
- `--port`: Port to listen on (default 1965)
## Security
Uses path validation to prevent directory traversal. Validate hostnames for production use.
### Certificate Management
- Never commit certificate files to version control
- Use development certificates only for local testing
- Production certificates should be obtained via Let's Encrypt or your CA
## Testing
Run `cargo test` for unit tests. Fix warnings before commits.