Live migrations are not enabled on this computer (Hyper-V)


Trying to move a virtual machine between Hyper-V 2016 hosts. Following error is displayed:

Live migrations are not enabled on this computer.
This computer is not configured for live migration of virtual machines. To enable live migration, modify the Hyper-V settings.

Deleting Default Mailbox Database in MS Exchange 2016

If you try to remove the default mailbox database in Exchange 2016 EAC (Exchange Admin Center) you may get following error:

This mailbox database contains one or more mailboxes, mailbox plans, archive mailboxes, public folder mailboxes or arbitration mailboxes, Audit mailboxes, To get a list of almailboxes in this database, run the command Get-Mailbox -Database <Database ID>. To get a list of ail mailbox plans in this database, run the command Get-MailboxPlan...

This is because the default database contains number of system mailboxes that are normally not visible in GUI. For example arbitrationmonitoringAuditLog mailboxes.

Using "Let's Encrypt" to request and enable free SSL security for IIS website

The easiest way to to provide free Let's Encrypt SSL security for IIS website is to use letsencrypt-win-simple tool.

  1. Download and extract letsencrypt-win-simple to a folder on your IIS server
  2. Run letsencrypt.exe and follow a simple command line wizard:
    • Provide email address for certificate expiration notifications
    • Select which ISS website you will be securing. Make sure your website has a correct host name in IIS Site Bindings. It will be used as the SSL certificate subject name.


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