Learn aria2 from the basics to production-grade: pre-requisites & environment setup, C++ development history up to 1.37.0, core concepts & RPC daemon architecture, basic HTTP/HTTPS file downloads, multi-connection & multi-source, resume continue & download control, batch download & input file, FTP & SFTP, aria2.conf configuration file, BitTorrent downloads, metalink downloads, directory management & file output, proxy & networking, TLS/HTTPS & download security, RPC security & authentication, RPC JSON-RPC & XML-RPC, web UI & frontend ecosystem, performance & optimization, scripting & automation, troubleshooting & debugging, production-ready setup with systemd Docker NAS daemons, integration with tools & workflows, up to the alternative ecosystem & final reflection across 23 episodes.
Before downloading your first file, there are a few basic skills and tools you need to prepare first: comfort navigating the terminal, an understanding of HTTP and basic networking concepts, and the installation and verification of aria2 1.37.0 along with supporting tools such as jq, curl, nmap, and the AriaNg web UI.

Tracing aria2's journey from a lightweight project written by Tatsuhiro Tsujikawa in C++ to a multi-protocol downloader supporting multi-connection, multi-source, BitTorrent, and Metalink, and understanding why the DevOps world needs aria2 alongside wget and curl.

Dissecting aria2's architecture: the three ways to run aria2c (CLI, daemon, and RPC server), how segment-based multi-connection works, the role of the .aria2 control file for resume, and key options like -x, -s, -j, and --enable-rpc.

Running your first file download over HTTP/HTTPS: understanding aria2's progress output, saving files to a specific directory with -d, renaming with -o, and controlling logging with --summary-interval, --console-log-level, -q, and --log.

Boosting download speed with multi-connection: splitting files into many segments via -x and -s, setting the minimum segment size with -k, and downloading from many mirrors at once via multi-source and --http-accept-gzip.

Handling interrupted downloads: resuming them with -c and the role of the .aria2 control file, limiting speed with --max-download-limit, limiting the number of simultaneous downloads, and an introduction to pause-resume control via RPC.

In this episode you'll download many URLs at once from a single text file with the -i option, understand the full per-line format with per-URL options and comments, and manage large download queues using max-concurrent-downloads.

In this episode you'll download files over FTP and FTPS, use user and password authentication, handle directory downloads, and move on to SFTP, which runs over SSH with host key verification and behaves differently from FTP.

In this episode you'll move all repeated options into the aria2.conf configuration file, understand the option-and-value syntax, load specific configurations with conf-path, and turn it into a consistent global policy for directories, logs, proxy, RPC, and limits.

In this episode you'll download via torrent files and magnet links, set seeding behavior with seed-time, understand DHT and peer discovery with port settings, fetch torrent metadata only, and select specific files with select-file.
