Leafnode is a software package that implements a store & forward NNTP proxy (client and server) that supports TCP connections across IPv4 and IPv6. It can be used to give a regular newsreader off-line functionality, merge news articles from several upstream newsservers for newsreaders that only support one server well and avoid duplicate news download for a small LAN with multiple users reading news.
Leafnode is intended for use at home or in small offices. Scalability for large user or newsgroup counts has not been a design goal.
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.