Whether your an IT Pro or just an average computer user, you are most likely familiar with something called DNS. You have likely gotten an error message in your browser indicating a DNS lookup failed, or have read an article mentioning DNS, or even had a computer technician walk you through verifying your computer’s DNS settings. If you are in IT, then you have most likely even encountered DNS in troubleshooting or while setting up a website or email server. After reading this post, you’ll have at least a good understanding of DNS, what it is, how it works, why it is important, and why things can break so easily when there is a DNS problem.
So you have a Sophos UTM device and want to setup dynamic DNS using your Google Domain? Sophos UTM offers a couple of built-in services for DynDNS, but Google Domains is not one of them. There are quite a few guides out there for hacking the UTM so that you can get this functionality, but they all seem to require creating a custom configuration file and then either manually starting the service at each boot, scheduling it to run, or something similar.