Inventory can scan your entire network, or only the local computer. The local web interface can run on port 80, or a port of your choice. The system is Windows based, but can discover Unix, Linux, or Mac/OS X systems. The management account must have Administrator & Remote Administrator (for Windows systems) privileges to discover systems on your network. One feature set I'd like to see better developed is manufacturer discovery for non-Windows devices. This is easy to accomplish with MAC address lookups, but apparently that level of discovery isn't in the code. Likewise, for a free product, SNMP capability is a bit much to ask for. One outstanding feature is the ability to write your own custom plugins, with lots of examples and online help available.