Got ED2K download link, but don’t know how to open it? Try aMule, eMule based app that works in most Linux Distributions.
ED2K (aka eDonkey2000) is a peer to peer file sharing network. The original project has discontinued, but the popular open-source fork eMule is still alive. As eMule is Windows only app, aMule forked it with multi-platform (Linux, FreeBSD, OpenBSD, Windows, MacOS X and X-Box) support.
For unknown reason, aMule, all-platform eMule P2P Client, is not included in Ubuntu 20.04 main repository.
While it’s available in previous Ubuntu repositories as well as the next Ubuntu 20.04 main repository, you can manually download the package and dependencies from Ubuntu 18.04 and install them manually in Ubuntu 20.04.
NOTE: for Ubuntu 22.04, 24.04, and higher, aMule has been added back into system repository. Simply open terminal (Ctrl+Alt+T) and run the command below to install:
sudo apt install amule
For Ubuntu 20.04, just download the deb packages and install them manually: