Tag Archives: Howto

How to use SSH Key Authentication in NSX-T

If you are working with Linux you are very likely familiar with SSH Keys. Public Key authentication is an authentication method that relies on a generated public/private keypair and enables a secure method to login without entering a password.

Usually, you would use ssh_copy_id to transfer keys to a remote system or add it to the authorized_keys file manually but NSX-T does not support those methods. This article explains how to enable ssh key authentication for NSX-T Managers and Edge Appliances.

Read more »

How To Secure Erase ESXi Disks (HPE or Generic Hardware)

Since a couple of versions, vSphere comes with an erase function in the GUI. This function deletes all partitions to reuse disks with vSAN for example. However, data is not overwritten and can be restored.

Read more »

How to Install VMware vSphere Perl SDK on Debian 9 (stretch)

Download the latest Perl SDK for your vSphere version from code.vmware.com and copy it to the system. The download is free, but an My VMware account is required.

Make sure that your system up to date:

# apt-get update && apt-get upgrade -y

Read more »

How to silence VMware vSAN Health Checks

A new feature in vSAN 6.6 is the ability to silence Health Checks. In previous versions, it was already possible to disable alerts that are triggered by health checks. Silencing health checks is one step further and enables you to have a clean vSAN health. Silenced checks are displayed with a green checkmark and are marked as "Skipped".

Especially for home labs, where unsupported hardware is used, this is a great feature.

Read more »

VMware vSAN 6.6 Upgrade Steps

The VMware vSAN 6.6 has been released today. In this post, I am going to run through the 3 steps to upgrade vSAN 6.5 to vSAN 6.6. Upgrading Virtual SAN is a multistage process, in which you must perform the upgrade procedures in the order described here:

  1. Upgrade vCenter Server to version 6.5.0d
  2. Upgrade ESXi Hosts to version 6.5.0d
  3. Upgrade the vSAN on-disk format to version 5.0

Read more »

Intel NUC - Blank Manufacturer and Model in ESXi Summary Tab

Intel does not preconfigure SMBios information for their NUCs. When you install VMware ESXi, Manufacturer and Model information in the Summary tab are missing. Intel provides a tool for system integrators that allows customizing the BIOS.

Read more »

How to add AD Authentication in vCenter 6.5/6.7

The vCenter Server has an internal user database that allows you to add and manage users with the vSphere Web Client. Users management and Single Sign-On is provided by the Platform Service Controller which is available since vSphere 6.0. In a large environment, you might want to connect your virtualization infrastructure to a centrally manage Active Directory.

This article explains how to add AD authentication in vSphere 6.5 and how to get the "Use Windows session authentication" checkbox to work with the enhanced authentication plugin. This works for both, the vCenter Server 6.5 installed on a Windows Server and the vCenter Server Appliance (vCSA).

Read more »

How to Join the vCSA 6.5/6.7 to an Active Directory Domain

In vSphere 6.5 the underlying operating system from the vCenter Server Appliance (vCSA) has been changed to VMwares PhotonOS. With the new OS, you can still join an Active Directory domain to comply with company policies, or if you want to use windows session authentication. Joining an Active Directory domain is included in the infrastructure node configuration which is part of the Platform Services Controller. Please verify standard AD requirements like time synchronization and naming prior to joining a domain.

If you want to log in with the "Windows session authentication" checkbox, you have to add the appliance running the Platform Services Controller (PSC) to the domain. For embedded deployments, join the appliance running both, the vCenter and the PSC to the domain.

Read more »

vSphere 6.5 Component Password Recovery (vCenter, SSO and ESXi)

Everyone knows the situation where you can't log into a system because you have forgotten the password. The following article explains how to reset the password and regain access to VMware vSphere 6.5 core components including vCenter, SSO and ESXi Hosts.

  • Reset vCenter Server Appliance 6.5 root password
  • Reset SSO Administrator Password (vCenter Server Appliance 6.5)
  • Reset ESXi root password with Host Profiles
  • Gain Administrative ESXi access with an Active Directory
  • Reset ESXi root password (Linux Live CD)

Read more »

vMA 6: Recover vi-admin Password and Remove Password Complexity

When you've installed the vSphere Management Assistant 6.0 (vMA) you very like came across its very strict password policy. With this requirements, the password recovery for vMAs is a common tasks. This post explains how to recover forgotten vMA passwords and how to use insecure, simple passwords for lab uses.vma-bad-password

Please provide a password for the vi-admin user.
BAD PASSWORD: to short
BAD PASSWORD: it is based on a dictionary word
BAD PASSWORD: is too simple
...Have exhausted maximum number of retries for service

Read more »