I have setup nbox/topng on Ubuntu 14 powered by a Dell PowerEdge 2950 using this package: http://www.nmon.net/apt-stable/
I have two eth adapters, eth0 for management and eth1 for ntopng. Eth1 is plugged into a SPAN destination port on a Cisco 2940 switch with SPAN configured to source the port my router is attached to. It appears to be picking up flows properly.
1. What benefits are there to moving off of a SPAN design and over to a nProbe/Netflow design
2. How do I add non-admin users and/or groups in the ntopng portal, I only see the option to add admin level users.