Nigel Boulton's Blog
24Apr/152

Disabling Password Expiration for the vCenter 6 Appliance Root Password

I am working on a vSphere 6 design for a customer, and they have requested that password expiration for the vCenter Appliance root password be disabled. By default this password expires after 365 days, so it could be easy to forget to change it before it does (it is possible to configure the appliance to notify you by email of impending password expiry, but for that to work you must remember to specify an email address for the root account first).

The vSphere 6 documentation details the command that you need to use to disable password expiration for the root user, but there are some prerequisite steps that aren't covered in the same place, so I though I'd document the whole process here.

  1. First, decide whether you want to access the vCenter Server Appliance (vCSA) using SSH, or its Direct Console User Interface (DCUI). If you want to use SSH, you will need to enable SSH access. If this wasn't enabled in the deployment wizard when the appliance was deployed, use the vCSA DCUI console to enable it (F2 – Customize System - Troubleshooting Mode Options) or the Web Client under Home - System Configuration - Nodes – (select node) - Manage - Settings – Access
  2. Use your favourite SSH client to connect to the vCSA and log on as root, or enable the shell using Alt-F1 at the vCSA DCUI console and do the same
  3. Enable bash shell access. To do this, issue the "shell.set --enabled True" command to the appliance shell. Note that the default timeout for this enablement is 1 hour, after that time the bash shell will be automatically disabled. You can use the "shell.get" command at the appliance shell Command> prompt to show the time remaining (you can also check it in the Web Client). As an alternative, you can enable the bash shell under Troubleshooting Mode Options in the DCUI if you prefer
  4. Start a bash shell using the "shell" command
  5. Run "chage -l root". This will display the current settings for the root user:

    image2

  6. Run "chage -M -1 root" to disable password expiration (i.e. set 'Maximum' to -1) for root
  7. Optionally, run "chage -l root" again to verify the change
    image5
  8. "exit" from the bash shell
  9. Finally, "exit" from the appliance shell

That's it!

Comments (2) Trackbacks (0)
  1. Great article, worked perfectly

  2. Helped me today, thanks Nigel!


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