Hi there. Please find my blog posts here:

12 Nov 2018 » Uninstall old PowerShell Module Versions by Michel Zehnder • •
If you’re using a Module like AzureRm, and you update it from time to time (Update-Module), you will find that you’ll have a couple of versions installed of all the individual modules. Something like this:
04 Nov 2018 » Test by Michel Zehnder • •
Test using Jekyll
22 Oct 2016 » Firmware security rules by Michel Zehnder • •
After yesterday’s attack on DynDNS, a provider of vital Infrastructure for the Internet, several big sites, including Reddit and GitHub were down. The speculations are, that IoT devices were used, same as in the last attacks to KrebsOnSecurity and OVH, which had massive 620 Gbps and > 1 Tbps traffic to their Infrastructure.
18 Oct 2016 » Certificate Template not available by Michel Zehnder • •
One thing that I tend to forget when I duplicate a Certificate and I want it to be used in the Certificate Web Enrollment page is that - in addition to needing “Enroll” permissions - I need to set the “Subject Name” Tab to “Supply in the request”. Else this won’t show up..
17 Oct 2016 » Change DNS Server for DNS Clients in Domain by Michel Zehnder • •
Recently we had the need to change DNS Servers on a couple of machines. Rather than logging into every machine and doing this manually, of course we did it using PowerShell! It even works with IPv6.

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