Do you know all devices connected to your IT network ? Do you know which software or hardware component is installed on a computer ? Are you able to deploy softwares or configuration scripts on your computers ? No, then Try OCS Inventory NG at http://www.ocsinventory-ng.org...
NetMRG is a package for network monitoring, reporting, and graphing. It uses RRDTOOL for graphing data, PHP for web-based configuration, and a C program for data gathering, with native SNMP support and the ability to accept data from custom scripts.