Openfire Security and Hardening

Hello all,

So I need to secure/harden openfire but I cannot seem to find any documentation or guide on how to harden openfire. The closest I’ve come across would be this site which does not look very legit or complete…
I also don’t see any guides that are relevant in the documentation repository in the link below, apart from maybe the SSL guide.

Hence I was wondering if anyone knows whether there is an official hardening guide for openfire and if there is then where can I find it. Otherwise, any unofficial guide or any recommendations on best practices for security would suffice.