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Updating handshakeTimeoutMs setting for ESXi 7.x & 8.x using configstorecli

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With the introduction of the ESXi Configuration Store back in vSphere 7.0 Update 1, all ESXi configuration changes should be managed using either the configstorecli for an individual ESXi host or leveraging the new vSphere Configuration Profiles (VCP) for scale with vCenter Server.

For certain ESXi hostd configurations such as configuring the handshakeTimeoutUs property, which has changed locations from several locations including /etc/vmware/hostd/config.xml and /etc/vmware/vpxa/vpxa.cfg to now /etc/vmware/rhttpproxy/config.xml in the latest ESXi 8.x release, it can be challenging to figure out the correct configstorecli syntax.

Having spent some time playing with the configstorecli, I was able to quickly help a customer recently who was looking to update the handshakeTimeoutUs property for ESXi 7.x and I wanted to make it easy for folks to find the syntax for both ESXi 7.x and 8.x.

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ESXi configstorecli enhancement in vSphere 8.0 Update 1

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The ESXi configstorecli was introduced back in vSphere 7.0 Update 1 and provides access to the ESXi ConfigStore which responsible for centrally managing all configurations for an ESXi host instead of relying on different methods including a variety of configuration files, I highly recommend reviewing this refresher article HERE if you have not heard of the configstorecli before. The ESXi ConfigStore is also the underlying infrastructure that powers the new vSphere Configuration Profile feature which is also part of the vSphere Lifecycle Manager (vLCM) solution.

For those who currently or plan to automate ESXi installations using Kickstart, I wrote an article HERE last year on how to start converting some of your existing automation into using the new ESXi configstorecli, which is another article I recommend folks take a look if you have no already.

One of the challenges that I personally found when using configstorecli was purely figuring out the overall schema for the different components, groups and keys that are available. While I have demonstrated how to traverse the configstore in this blog post HERE, I still found experience less than ideal. I would have liked a bit more of an iterative exploration of the configstore itself and rather than showing the entire schema, I could slowly expect each node as configstore is a stored as a JSON document.

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How to replace some of ESXi Kickstart automation with new configstorecli commands?

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I had received a question a couple of weeks back from a customer who was already automating their ESXi installation using ESXi Kickstart, also known as ESXi Scripted Installation but they had ran into an issue when migrating the exact same automation to the latest ESXi 7.0 releases.

The method the customer was using to manage their ESXi password policies, which was by updating the /etc/pam.d/passwd file, no longer function as expected and this was a result of the introduction of the ESXi ConfigStore, which I have written about here.

As mentioned in the article, the goal of the ESXi ConfigStore is the following:

The goal of the ConfigStore, initially introduced in ESXi 7.0 Update 1, is to centrally manage all configurations for an ESXi host instead of relying on different methods including a variety of configuration files.

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