Back in 2020–21, we were teaching our students how to stand up and configure cloud services, and I decided that a good extension of my homelab would be in AWS,

Back in 2020–21, we were teaching our students how to stand up and configure cloud services, and I decided that a good extension of my homelab would be in AWS, so that I could learn basic cloud administration. I was using the Free Tier for starters, of course. I managed to start up a working MediaWiki server on a Linux machine in EC2. I began to explore some of the more esoteric options and always checked out the extra-secure methods, and IAM and so forth. My MediaWiki had a lot of spammers registering accounts. They weren't actually able to make edits, but I couldn't seem to stop them from creating user accounts. And I always felt rather... naked in terms of securing the Linux system itself. It seemed like the entire Internet had an Eye of Sauron focused on my open TCP ports and they were port-scanning it and running pentests 24/7. I honestly couldn't keep up! Ultimately, I did realize that I could never constrain the budget to an affordable $20 or $30. Signs seemed to indicate that any malicious traffic could crank up my network egress costs alone! There were some rudimentary controls but they would never permit a full-scale shutdown of all services that could actually cost money. So I shut down the cloud services and abandoned my Amazon AWS account. Migration to the cloud might seem like a good value proposition for any business that can't handle its own machine rooms or its own I.T. team to manage physical infrastructure. But it's an unconstrained cost nightmare waiting to happen for basically anyone of any scale. I would never recommend it, for personal or business use, until that aspect is somehow brought under control.