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MrVmware9423
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VM network adaptor is not visible

Hi,

I have complaint from client that  they are not able get the connectivity then i have checked in vm troubleshooting then founded there is no network adaptor in that particular vm machine,

Please suggest what will be the root cause for that.

Regards,

RAS

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schepp
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Hi,

I guess that VM used to have a network adapter installed once?!

You might want to think about hardening your VMs. By default every user that has remote access to the VM can eject the NIC by using the windows function for ejecting removeable devices. That's what might have happened to your client.

To prevent this you can add several custom settings in the vmx file. To prevent removing the devices it would be

isolation.device.connectable.disable = "true"
isolation.device.edit.disable = "true"

for example. But there are more.

Please check the vSphere 5.0 hardening guide: http://communities.vmware.com/docs/DOC-19605

and this nice tutorial by William on explaining how to harden your VMs automaticly through scripts in vCenter: http://blogs.vmware.com/vsphere/2012/07/automatically-securing-virtual-machines-using-a-vcenter-alar...

Regards

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schepp
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Hi,

I guess that VM used to have a network adapter installed once?!

You might want to think about hardening your VMs. By default every user that has remote access to the VM can eject the NIC by using the windows function for ejecting removeable devices. That's what might have happened to your client.

To prevent this you can add several custom settings in the vmx file. To prevent removing the devices it would be

isolation.device.connectable.disable = "true"
isolation.device.edit.disable = "true"

for example. But there are more.

Please check the vSphere 5.0 hardening guide: http://communities.vmware.com/docs/DOC-19605

and this nice tutorial by William on explaining how to harden your VMs automaticly through scripts in vCenter: http://blogs.vmware.com/vsphere/2012/07/automatically-securing-virtual-machines-using-a-vcenter-alar...

Regards

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rickardnobel
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MrVmware9423 wrote:

I have complaint from client that  they are not able get the connectivity then i have checked in vm troubleshooting then founded there is no network adaptor in that particular vm machine,

Is there a vNIC attached to this VM from the ESXi point of view?

And this NIC is not visible inside the guest operating system?

If so, what adapter type is the vNIC and which operating system is installed in the VM?

The type has to match the Guest operating system or needs updated VMware Tools to work, depending on the vNIC type.

My VMware blog: www.rickardnobel.se
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MrVmware9423
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Dear Schepp,

that setting is already set in a vmx file then also i m able to see "Safely remove hardware" and i m able to remove the (Network)device . Need your help to prevent removing the device.

regards

Mr VMware

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MrVmware9423
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Dear Scheep ,

ihave added one more additional line i.e devices.hotplug=false and now it's working fine

isolation.device.connectable.disable=TRUE
isolation.device.edit.disable=TRUE
devices.hotplug=false

Many thanks for the prompt response.....

regards

Mr VMware

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