ElFroggio
Using the server manager Remote Management panel, if you enable remote access, then you also enable remote access for server manager and user manager.
So make sure you use a very strong (long & complex) password for server manager to kerp server manager access secure.
IIRC in the old original version of this package from Dungog there was a db command to allow access from specific external IPs & there were brief instructions displayed on screen at the end of the installation, when using command line ie
rpm -Uvh packagename
Not sure if you see those instructions when using yum or whether they are still supported in the new version.