Setting up Microsoft Defender and Arc on a Linux server may seem counterintuitive but has its benefits.The setup is based on Microsoft's official best practices for Defender on Linux.Generate an onboarding script from the Microsoft Azure portal for Linux servers.Download and save the onboarding package for deployment on each server.Different setup steps are provided for RPM-based distributions like CentOS and SLES, as well as Debian and Ubuntu.Commands for installing necessary dependencies, adding repositories, and installing packages are outlined.Configuration steps for enabling real-time protection and connecting to ARC are detailed.Benefits of using Defender on Linux include real-time threat protection and cross-platform support.Defender also offers advanced threat detection, vulnerability checks, centralized management, and compliance assistance.Newly added Linux machines may take time to appear in the Defender and Arc Azure Portal for full synchronization.