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Can you really deploy the vCenter Server Appliance (VCSA) without DNS and NTP?

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The simple answer is Yes. Now, you might be wondering why anyone would want to put themselves through the pain without setting up proper DNS and NTP?

Well, not all environments have the luxury of having either outbound connectivity and/or access to basic infrastructure services like DNS and NTP. This may come as a surprise to some, but there are customers out there that need to operate in very unique and constrained environments. One such example of this is typically from customers that need to deploy vSphere in a "dark site" where local infrastructure services like DNS and NTP are not available.


I recently re-validated this deployment model using the latest vSphere 7.0 Update 3 release running on an Intel NUC 11 which had no outbound connectivity and it was only connected to my laptop, which also had no outbound connectivity or access to DNS or NTP. Since this question recently came up from a customer who was looking to automate this, so I ran through the deployment workflow using the VCSA CLI Installer but this should also be possible with VCSA UI Installer as the same options are supported.

OK, so how do you make this work?

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Heads Up - No healthy upstream error with VEBA vSphere UI plugin with vSphere 7.0 Update 3

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After upgrading my homelab to vSphere 7.0 Update 3, I noticed that my VMware Event Broker Appliance (VEBA) vSphere UI Plugin which is included as part of the VEBA Appliance was no longer functioning properly and would display no healthy upstream error message.


I initially thought this might be environmental, since I had just upgraded from lab from vSphere 7.0 Update 2d to 7.0 Update 3. I had reported the issue to our vSphere UI Engineers who built the VEBA UI plugin and while they were looking into the issue, we had another report from a VEBA user who also was hitting the same issue. Today, I got an update from Engineering and it looks like there was a regression in the Envoy service running in the VCSA which had caused this issue. This issue will be fixed in a future patch update for the VCSA, but in the mean time, VEBA users can apply the workaround outlined below.

Note: This workaround is required for vSphere 7.0 Update 3 or later. The issue has been fixed in vSphere 8.0 but if you are running any version of 7.0 Update 3 or newer, you will still need to apply this workaround.

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Minimum vSphere edition & features for Tanzu Community Edition (TCE)

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There have been a number of questions that have been raised by the community regarding the specific vSphere features and/or editions that is needed to deploy Tanzu Community Edition (TCE). I honestly thought I knew the requirements quite well myself but when it came to specific vSphere Editions, it made me second guess on what features TCE actually required for functionality.

I decided to deploy a brand new setup using the latest vSphere 7.0 Update 3 (vCenter Server and ESXi) release, which was all deployed onto a single 11th Gen Intel NUC. Below are my findings which I will share back with TCE folks and enhance our documentation. Ultimately, you just need access to a vCenter Server that is managing an ESXi host which can be a standalone host or one that is within a vSphere Cluster. Hopefully this will be helpful for anyone that wishes to get started.

vSphere Version:

  • As the official TCE documentation states, vSphere 6.7 Update 3 or newer is needed and this is primarily because that is the initial release that incorporates our vSphere CSI driver

vSphere Edition (minimum):

  • vCenter Standard and vSphere Standard
  • vCenter Essentials and vSphere Essentials Plus

Note: I did not have access to a vSphere Essential license but I am pretty confident it should also work.

vSphere Features:

  • Both vSphere HA and DRS is NOT required