So I recently bought a Mikrotik RB5009 router to replace the router provided by my provider. They always are far too limited and can't handle large amounts of traffic very well without bottlenecking. 
I've discovered the fun thing about Mikrotik routers is that it doesn't come with much configuration at all unlike routers from Fortigate for example. 

Applies to: Ubuntu Version: 20.04

When you have a mixed Windows/Linux domain it might be usefull to have your machines be able to authenticate with a single point of authentication, like an Active Directory.
It saves everyone the trouble of remembering another set of credentials.

I've done this with Ubuntu version 20.04, but it should work on some older versions and later versions. No guarantees.

If you are planning to adding the Yubikeys as a hard token for your users in ESET Secure Authentication installation you'll most likely have ended up at the ESET guide on how to do it found here:
https://techcenter.eset.nl/nl/kb/articles/using-yubikeys-with-eset-secure-authentication

The problem with this guide is, it assumes you only use the Yubikey as a hard token for ESET and NOTHING else.
Like most people, I use these keys as 2FA for facebook for example.

I run a pair of Unifi AC Pro AP's at home and with the Unifi Controller installed on Debian in a VM. We all know the drill, once in a while a update comes along and it's time to update.
Well for me... the normal instructions given by Unifi doesn't work for me, so I had to find another way to install the update...