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Dave's Users flip the switch!

a guest May 22nd, 2018 121 Never
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  1. I have worked for companies making wholesale lockbox systems since 1992. Basically we build and integrate systems which process wholesale check payments between companies. Last year our system processed around $1.8 trillion in transactions, almost all of which ran through FreeBSD. But I digress.
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  3. Years ago, before I was an employee, a company I worked for built a system for a bank in Dallas using a Data General machine. This machine kept resetting itself randomly and the problem couldn't easily be identified. Over the course of around half a year, everything was analyzed, until finally our company had 3-4 technicians on site using scopes and meters on every part of this machine which they thought may be problematic, but the problem persisted.
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  5. Finally, partly out of frustration or perhaps desperation, they built a physical cage around this machine to prevent any access, intentional or incidental.
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  7. Soon after they were called in because the machine was down. It hadn't reset, it was just powered off. A bit of investigation revealed that someone had been flipping the 220v AC power off and then on to reset this machine, causing a long reboot process, which allowed employees near the end of a shift to leave a few hours early. Since access was denied by the cage, the person had flipped the 440v wall panel switch instead, not realizing that it required a key to flip it back on.
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  9. A quick check of their records revealed that the problem hadn't happened when a certain floor supervisor was on vacation, so they narrowed the problem down to him, and I believe he was let go.
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  11. Just one of many head shakers I've heard from folks who were there.
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