On two different Joomla websites (different databases but same server) I have installed Kunena forum. Now I want to synchronize those two forums, so they both look same (same categories, same posts, same debates,...), but they both run on their own website. So I don't want to merge those two forums in one forum, but I want synchronize those two forums, so users from both sites can interact between them but on their own forum. I already have a user synchronization module - so users are already same.
You can make a standalone module for database tables synchronization (doesn't need to be integrated in the Joomla Admin) or maybe tweak one forum to use database of the other forum.
Forum 1: [url removed, login to view]
Forum 2: [url removed, login to view]