Company Management
OMI, when running on Windows, impersonates the connecting user to access WMI. Even if the user has local admin rights, they may lack:
OMI is an open-source CIM server implementation. It allows Linux systems to expose management data via the standard (Common Information Model Object Manager) interface. When a management tool (the client) wants to know about the operating system on a Linux node, it queries the OMI server using the WS-MAN (WS-Management) protocol.
OMI is typically a 64-bit service. However, if cimwin32.dll is only registered in the 32-bit WMI store (rare on modern Windows), a 64-bit OMI request may not locate it. Conversely, if you are running a 32-bit OMI client on an older 64-bit Windows Server 2008 R2, provider registration peculiarities can cause class absence. win32-operatingsystem result not found via omi
/opt/phoenix/bin/omic -s /opt/phoenix/config/smb.conf -U DOMAIN/USER%PASSWORD // 'SELECT * FROM Win32_OperatingSystem' Use code with caution. Copied to clipboard (Path may vary based on your specific OMI installation) Further Exploration Scenario guide: Troubleshoot WMI connectivity for deep-dives into DCOM and UAC permissions. See the official Fortinet Community Troubleshooting Tip for specific integration steps for Domain Controllers. Review the OMI GitHub repository for version-specific bugs and Linux agent configuration. exact shell commands to re-register the WMI components on your Windows server? FortiSIEM AIO - Collector questions and WMI/OMI issues
The WMI repository is a transactional database storing class definitions and instances. If it becomes corrupted—due to abrupt power loss, disk errors, or faulty third-party software—certain classes like Win32_OperatingSystem may become unregistered or unqueryable. OMI simply inherits this corruption. OMI, when running on Windows, impersonates the connecting
Then reboot.
omicli wql "SELECT * FROM Win32_ComputerSystem" omicli wql "SELECT * FROM Win32_BIOS" When a management tool (the client) wants to
If the repository is fine but the class is missing:
OMI relies on providers to expose WMI classes. Confirm the provider for Win32_OperatingSystem is registered:
After troubleshooting this issue across hundreds of environments, specific patterns emerge.