Connect-MgGraph: Keyset does not exist

In the last few days, I’ve got two reports that my PowerShell module for Office 365 Health suddenly started giving errors. This was a bit weird because it worked perfectly fine on my end. But while I could understand one person having an issue of their own, with their network or firewalls, if the second person comes along with the same report, that means something else is going on.

Last few weeks, I’ve been working on making creating HTML based Dashboards, Reports, and Emails better. PSWriteHTML already allows fancy looking reports or emails without much effort, but this release makes it even more helpful. I will be mixing three PowerShell modules in this blost post – PSWriteHTML (responsible for creating HTML/CSS/JS code), Emailimo (simplifies creating emails based on PSWriteHTML) and Dashimo (simple dashboard building). If you’ve never heard of those modules before I encourage you to start from earlier blogs about them to understand the concepts before you dive into this one.  Hopefully, those will give you some ideas that will match what you will learn today.

There was I, deploying PSPasswordExpiryNotifications for one of my Clients when I started getting complaints that some users are not getting their Password Expiry Notifications. Well, that’s a new one. I’ve tested this script multiple times, and it worked just fine. So I dive into the details of my script to see what I did in there (I don’t even remember anymore – it just works) to find out this little line:

Today I wanted to introduce a little product that I’ve created in the last few weeks called Dashimo. It doesn’t cover everything I wanted from it (feature wise), but it already can be used in production. Therefore, I thought it would be a good idea to get some feedback on whether I should spend some more time on it or throw it in the dumpster. Dashimo joins it’s older brother Statusimo of PowerShell modules allowing an easy way to build HTML output. If it will feel familiar, it’s because it was inspired with Bradley Wyatt PowerShell script he did. It gave me the idea of how I would like to build something similar but in a bit different way then he did, with much more flexibility. Still, if it wasn’t for him, the idea wouldn’t be there, therefore you should send him your thanks.

Christmas time is upon us, and I’ve decided that my PSTeams module needs some love. I wrote it in late 2018 and updated it a few times at the beginning of 2019. This release hopefully is worth of having 1.0 version number. I don’t do that often and usually go for build numbers changes only, but Microsoft Teams message cards have their limits on functionality. Therefore, there are not many things that can be added unless Microsoft opens up and gives us all the cool features of Adaptive Cards. PSTeams module uses Webconnector to send messages to Teams. That method only supports Message Cards, which even Microsoft calls Legacy. But legacy doesn’t mean fully functional with some cool features of their own. If you’re new to PSTeams you may want to read those 2 posts below to get information how to set it up.

If you’re using VSCode with Powershell extension, you probably got used to PSScriptAnalyzer giving you all kind of tips on optimizing things. It makes your code better. Chris Bergmeister does a great job working on it. One of the tips PSScriptAnalyzer gives you when you use $null on the right side of the comparison.

In Active Directory when you change something, it’s replicated to other Domain Controllers regularly. It’s a standard procedure that happens automatically in the background for you. It’s a handy feature because you can have multiple DC’s all over the world and have your users data in sync. You can change almost anything on DC nearest to you and be sure it will be the same value all over the place. But is it always the same? Well, it should be unless it isn’t. Today I was given a new migration from  Exchange to Office 365. I started with ADConnect installation and wanted to make sure that UserPrincipalNames have all UPNSuffixes in place.

When you write PowerShell modules, there’s a high chance you will have conflicts with either existing system commands (you should avoid that) or with someone else’s modules. There are also times when someone wants to use a private function from a module that only exports essential functions. Here’s a couple of ways how to deal with those scenarios.

Some months ago, I created PowerShell Script to create local administrative users on workstations – Create a local user or administrator account in Windows using PowerShell. It’s a bit overcomplicated, but the goal was it should work for Windows 7 and up, and that means supporting PowerShell 2.0. As part of that exercise, I’ve been using Win32_UserAccount WMI based query to find local users and manage them to an extent. While Get-LocalUser exists, it’s not suitable for the PowerShell 2.0 scenario. I also use the same query in GPO for WMI filtering. You can say it’s been a good friend of mine.

I’m a big fan of PowerShellGallery. It’s easy to use, Microsoft owned, a place to host your PowerShell modules. Every time I release a new PowerShell module, it’s readily available for me or anyone with a single command Install-Module. No need to host it yourself, no need to prepare anything – plug & play. Additionally, if your PowerShell module has any dependencies, it will download and install them, so it directly works out of the box. But what if you can’t use PowerShellGallery? What if you don’t want to use Install-Module on 100 computers, but you prefer to do it in a more controlled way? What if your servers do not have internet connectivity?

FTPS and SFTP are two ways to send and receive files from remote sources. While the name suggests both do the same thing, those are different protocols, in the end, having the same goal. A few weeks back, I had to make sure I can reliably download files from FTPS server using PowerShell, and since I couldn’t find anything straightforward to use, I decided to write my own. Transfertto is a new PowerShell module that supports both FTPS and SFTP protocols. Its goal is to be the only module that you need to transfer files to and from FTP/SFTP servers.

I’ve been working last few hours trying to set up my laptop for PowerShell Conference, and one of the tasks is to get my modules up and running. To my surprise on Windows 10 1903 Install-Module thrown a weird error