NNTPSwitch is a Linux NNTP content router. It's aimed at high-performance news servers for ISPs and Usenet resellers. NNTPSwitch forwards client connections to multiple backend servers to get its actual articles. Depending on the backend server type, all NNTP commands and extensions are supported, including (remote) authorization. Accounting is supported in a user-friendly matter for data limited NNTP connections.
hellanzb is an application that retrieves and processes NZB files and makes obtaining files from Usenet as hands-free as possible. Once fully installed, all that is required is moving an NZB file to the queue directory. Downloading, par-checking, and un-raring is done automatically by the program.