Keep track of your inventory. You can't protect what you don't see.
- GLPI - Free Asset and IT Management Software package, Data center management, ITIL Service Desk, licenses tracking and software auditing.
- LANSweeper - Build centralized IT asset inventory.
- OSCInventory-NG - Webconsole for OCS Inventory NG.
- Ralph - CMDB & Asset Management system for data center and back office hardware.
- Snipe-IT - A free open source IT asset/license management system.
- Zabbix - Zabbix is for Real-time monitoring of IT components and services, such as networks, servers, VMs, applications and the cloud.