When working towards decommissioning a single or multiple Domain Controllers/DNS servers it is important before the DNS role is removed that every device referencing the server for DNS queries is identified and updated with the new values. DNS is an integral part of healthy functioning systems and failure to do so could result in serious system failures and problems.

After installing the Windows Server Backup Feature on Server 2012, 2016 or Server 2019 the Windows Server Backup feature/service can be missing from the server even after trawling through start menu shortcuts, searching for it, rebooting the server and even Powershell saying it is installed.

When working with certificates in larger or unfamiliar environments it is likely you will need to access the certification authority (CA) server.

The command below can be run to quickly identity any authorised certification authority servers that are available in your organisation including any that you may not be aware that exist.


When working across many different Exchange environments it is useful to quickly know which build version you are on for each Service Pack, Cumulative Update or Update Rollup of the specific Exchange release.

The commands below provide a quick reference to obtaining the builds using the Exchange Management Shell.

This guide allows you to create a multi-domain/unified communications certificate (UCC) for securing multiple domains under 1 certificate, you secure a primary domain name and up to 99 additional Subject Alternative Names (SANs) in a single certificate.