Migrating Openfire jabber to another server?

Question

Messengers

Colleagues!
There was a task, to migrate openfire from one server to another. I didn't find clear manuals. I tried to solve the problem head-on, namely to install the same version of openfire on the new server as on the source server, and stupidly copy the working directory from the old to the new one. The result is predictable, nothing started.
Maybe you had an experience of such a migration, please share?

Answer 1

Well, actually I will answer myself, well, maybe it will be useful to someone. The casket opens very easily. Installed on a new openfire server, configured by default. Next, install the standard User Import Exprot plugin on the old server, export users to an xml file (yes, users will have passwords, yes, roadsters are also upgraded), and on the new server, having installed the same plugin, import users.
If necessary, we change records in DNS.
PROFIT!!11

Answer 2

It did not work, because you still need to transfer the database to a new server, and register the owner on the /etc/openfire directory.
I have now been so transferred, everything is fine and works, along with certificates.