NSX Manager – Changing Certificates

After installing NSX-T Data Center, the NSX managers and cluster use self-signed certificates. These can and should be replaced with trusted certificates from an enterprise CA. The new certificates can be imported into the UI of the NSX Manager. Unfortunately, replacement is done exclusively via an API call. This can usually be done nicely with utilities such as Postman. However, there are environments that are very restrictive and in which neither an application such as Postman is available nor any other Linux system from which the API calls could be issued.

We will outline how we can do this without any special utilities using only the CURL command directly from the NSX Manager appliance.

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NSX-T Update Procedure

On October 20th 2020 VMware released NSX-T version 3.1 (release notes).

Upgrade from version 3.0

I’ll outline the process of upgrading from version 3.0.x to version 3.1. In the example shown, a base version 3.0.2 is upgraded, but the process is the same for all versions from 3.0.

Requirements

We’ll need an upgrade bundle (MUB) from VMware download site (login required).

Upgrade

First we need to login to NSX-T Manager. Go to section Lifecycle Management and select Upgrade. You’ll see your current version on the right. Start the process with Upgrade NSX.

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