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How to extract host information from within a VM?

01.15.2011 by William Lam // 34 Comments

From time to time, I see this question come up asking how one might be able to extract a certain piece of information from either ESX(i) or the management APIs (vSphere API) from within a virtual machine. The simple answer is you can not, by default the guest operating system has no idea of the underlying hypervisor nor does it have the access to the management APIs. This of course, assumes you are following VMware's best practices in isolated and segregating off your management network from your virtual machine network.

Having said that, there are certain bits of information that you can extract about your ESX(i) host from within the guestOS using some of the utilities that is installed with VMware Tools. The first utility is called VMware Toolbox command which can be found on both UNIX/Linux and Windows systems that have tools installed.

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Categories // Automation, OVFTool, vSphere Tags // guestinfo, vmtoolsd, vmware tools, vmware-cmd

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William Lam is a Senior Staff Solution Architect working in the VMware Cloud team within the Cloud Infrastructure Business Group (CIBG) at VMware. He focuses on Cloud Native technologies, Automation, Integration and Operation for the VMware Cloud based Software Defined Datacenters (SDDC)

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