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Can a VM in the VMC Compute Network access the SDDC Management Network?

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Similiar to an on-premises vSphere deployment, VMware Cloud on AWS follows good security practices by isolating and preventing access to the SDDC Management Network including Virtual Machines running in the Compute Network. With that said, the SDDC can be configured to enable access to the SDDC Management Network for either all or subset of workloads running in the Compute Network.

I have seen this request come up a few times, usually around proof of concepts, lack of on-premises infrastructure or wanting to run completely isolated within VMC for Dev/Test purposes. Below are the step by step instruction on setting this up for both an NSX-V and NSX-T based SDDC. Once enabled, customers can access the vCenter vSphere UI from within the specified Virtual Machine(s) including using tools like OVFTool or PowerCLI for importing new or existing workloads.

Note: Please refer to this blog post here to determine if you are running an NSX-V or NSX-T based SDDC.

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Automating Hybrid Cloud Extension (HCX) Manager initial configuration for VMC

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Following up from my previous Hybrid Cloud Extension (HCX) Automation article which looked at deploying the HCX Manager OVA, this article will now focus on automating the initial configuration of HCX Manager including the registration to HCX Cloud which will enable the on-prem HCX Manager to be used with VMware Cloud on AWS (VMC). Once HCX Manager is up and running, customers can configure the system using the HCX VAMI interface which is available on port 9443 via the UI or in our case with the HCX VAMI APIs. 


I have updated my HCX PowerShell Module to include 8 additional functions that can be used for initial configuration of HCX Manager:

  • Set-HcxVCConfig
  • Set-HcxLicense
  • Get-HcxNSXConfig
  • Set-HcxNSXConfig
  • Get-HcxLocation
  • Set-HcxLocation
  • Get-HcxRoleMapping
  • Set-HcxRoleMapping
  • Get-HcxProxy
  • Set-HcxProxy
  • Remove-HcxProxy

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Is vCenter Server & ESXi hosts using VMware Certificate Authority (VMCA) or custom CA certificates?

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Customers have two primary methods of managing TLS certificates for their ESXi hosts, they can either use the built-in VMware Certificate Authority (VMCA) which is part of vCenter Server or Custom CA Certificates. I will not go into the gory details, but you can read more about the options here in our documentation.

A question that I had received recently was whether you can determine the type of certificate an ESXi host was provisioned with and whether this could be programmatically retrieved using the vSphere API? The answer is yes. In vSphere 6.0, we introduced a CertificateInfo property which contains a number of fields including status, issuer, expiry and subject details and by inspecting either the issuer or subject property, you can determine the type of certificate on the ESXi host.

Here is a screenshot of the data using the vSphere MOB for an ESXi host that has VMCA-based certificate:


Here is a screenshot of the data using the vSphere MOB for an ESXi host that has custom CA certificate:


As you can see, for VMCA-based certificate the issuer's OU will have value of "VMware Engineering" and subject's emailAddress will have value of "*protected email*".

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