# aria2 — THE WHAT

A single Alpine-based Docker image that provides a complete, self-hosted download solution: **aria2c** handles multi-protocol downloads (HTTP/HTTPS, FTP, SFTP, BitTorrent, Metalink) via a JSON-RPC daemon on port 6800, while **AriaNg** (a pure-static web UI bundled at build time) is served by **nginx** on port 80, which also reverse-proxies `/jsonrpc` and `/rpc` to aria2c so end users interact with a single port. BitTorrent peer traffic uses port 6888. The design is zero-config on first run: the container seeds `/config/aria2/aria2.conf` and `/config/nginx/nginx.conf` from baked-in optimized defaults, a `tracker.sh` helper refreshes the BitTorrent tracker list at each startup, and users who want RPC authentication simply set `RPC_SECRET` in the environment.