Linux DC++ is a direct connect client for GNU/Linux. It is free and open source software licensed under GPL General Public License. Direct connect is a p2p file sharing protocol. You can connect to a central hub and and download files from other users. It has a long history and is still quite popular today. You need to find a website such as DCHubList that lists Hubs for direct connect and than search for a particular interest of yours. If the hub is public you can connect to it and share with other users. However, some hubs require you to share a minimum of 1, 2, 5 or 10 gigs of files. You can also chat with users and maybe get that hard to find file you were looking for so long. To learn more about Linux DC++ or to download their application visit their website.