

Operating system support NMDC hubįreeBSD, OpenBSD, NetBSD, Solaris, illumos, Haiku Direct connect hubs have difficulty scaling, due to the broadcast-centricity of the protocol. The software allow multiple hubs to be connected, allowing users to share and/or chat with people on the other linked hubs.

While not directly supported by the protocol, hub linking software exists. The hub may choose certain individuals as operators (similar to IRC operators) to enforce said rules if the hub itself cannot. The authentication is also in clear text. Hubs can allow users to register and provide user authentication. Many have requirements on the total size of the files that their members share (share size), and restrictions on the content and quality of shares. Hubs often have special areas of interest. File transfers are done directly between clients, in true peer-to-peer fashion. Hubs provide information about the clients, as well as file-searching and chat capabilities. For additional Hub software, see Comparison_of_ADC_software § General.ĭirect Connect hubs are central servers to which clients connect, thus the networks are not as decentralized as Gnutella or FastTrack.
