By a happy accident I did a 3 year masters program in India called Research Assistant program. I was a system-admin at the CS department's for 3 years. I had to

By a happy accident I did a 3 year masters program in India called Research Assistant program. I was a system-admin at the CS department's for 3 years. I had to do ton of stuff, like setting up and maintaining backups, installing tools such as DNS, mail servers, handling server failures, provisioning new servers, debug networking failures by inspecting router connections, so on and so forth. It was a lot of work but super fun and lots of stories. This was ~20 years ago so no SaaS tools etc., One had to do almost everything in house and we had to use free/open-source tools to save money. That experience taught me so much and I still use most of those learnings on a day to day basis.