XorMon NG uses vCenter REST API access via read-only user
Create a user xormon on each vCenter with read-only role.
It must be the global one (like below lpar2rrd user in xorux.com domain)
Assign xormon@xorux.com user read-only role
Allow access from the XorMon NG host to vCenter on port 443 TCP (https).
Installation of VMware Perl SDK from the UI
Download Linux VMware Perl SDK 7.x in tar.gz format either from the the VMware site or from XorMon NG site
Load it: UI ➡ Settins ➡ Device ➡ Server Virtualization ➡ VMware
Define VMware hosts (vCenter) in the XorMon NG UI:
Settings ➡ Device ➡ Server Virtualization ➡ VMware ➡ New ➡ place credentials (username in format: xormon@your_domain)
Run "Test" for the vCenter, it must show "OK"
Wait about 1 hour, then refresh the web browser cache by Ctrl-F5