baseboard management controller
A small computer on a server's motherboard that lets administrators power it on, watch sensors and use its console over the network, even when the operating system is down.
In more detail
It speaks IPMI or Redfish, and ipmitool queries it from Linux. Because it controls the hardware, its network port belongs on a separate, protected management network.
Taught in
- A Card With No Driver, A Stick With Too Much: Devices And Kernel Modules — CompTIA Linux+ (XK0-006) Exam Prep