Every now and then, you run into a situation where you might need an SSL/TLS certificate. You could always generate a self-signed one – but that won’t be trusted by anyone, so that’s no bueno. You could also order one online, even for free – but that’s kind of cumbersome,…Continue reading How to export the SSL/TLS certificate from a website using PowerShell?
A while back I got a request to change the default certificate for an AKS cluster. A customer didn’t like the “Kubernetes Fake Certificate” that’s shown when no other matching certificates can be found, and they wanted it changed. So yours truly started googling, and as a result, this article…Continue reading How to replace the default fake “ACME” certificate for Kubernetes/AKS?
This article explains another small but significant gotcha you “just need to know” when working with certificates and certification authorities, and you – just like me – are for some reason still using Windows as your workhorse. I’ll go through how to export the private key that has been stored…Continue reading How to export the private key from your Certificate Signing Request on Windows?
This post explains how to verify a private key (possibly a .key file) that you somehow got your hands on, that matches a certificate file (.cer) you also somehow are in possession of. I have no idea where I got mine, but I had to figure out how to make…Continue reading Using openssl to verify a certificate matches a private key
Recently, I ran into a problem that I definitely caused myself. I had a certificate, that was created to authenticate an app against Azure AD. The encryption key for the .pfx file was, however, lost. I could just create a new certificate, configure the app service to use that, and…Continue reading How to recover the private key of a (.pfx) certificate?
