Back in the day, at $Job-N, I was "in charge" of security things. This was after the Heartbleed fiasco, so we were trying to get our ducks in a row. We decided to regularly patch our Debian "fleet." We had 3 or 4 servers at that time, one of which was our test server. Each of the live servers housed 2 to 5 customers, depending on customer size. They also had a database cluster on each server, and each customer had a database in the cluster. This was the days before server-name indication was ...