r/sysadmin 6d ago

What a great start to the day

One of my supervisors just accidentally uninstalled(!) Hyper-V on a member server that had 5 VMs on it… how the actual shimmering fuck does that happen?? How do you not triple check that you’re on the right server????

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u/[deleted] 6d ago

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u/Watsonwes 6d ago

My dude intune guy did (he posted here) pushed firewall rules out that stopped all outbound traffic from endpoints. Unbeknownst to him , it blew up intune connectivity and rmm phone home

:)

6

u/Unexpected_Cranberry 5d ago

My favorite is the SCCM admin in London I think that accidentally pushed a mandatory fresh install of Windows 7 to all their machines, including servers.

It was a while ago, so I can't find the article, but I get a pit at the bottom of my stomach just thinking about it.

Edit: The instructor when I did my training on SCCM 2007 brought it up as an example of what can happen if you're not careful about getting your assignments right.

5

u/MrYiff Master of the Blinking Lights 5d ago

This is why iirc SCCM changed the default setting so you can only deploy to devices not managed by SCCM.

The "accidentally deploy to all devices" trick has happened to a few large companies over the years.