GFI LanGuard is a patch management and network auditing solution that enables you to easily manage and maintain end-point protection across devices within your LAN. It acts as a virtual security consultant that offers Patch Management, Vulnerability Assessment and Network Auditing support for Windows® LinuxAn open source operating system that is part of the Unix operating system family. and MAC computers as well as mobile devices. GFI LanGuard achieves LAN protection through: