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> Baseboard management controllers or BMCs are active on crashed or turned off servers. They allow one to, for example, power cycle servers remotely...This line
by gwern 8y ago
> Baseboard management controllers or BMCs are active on crashed or turned off servers. They allow one to, for example, power cycle servers remotely...This line from the Bloomberg is technically inaccurate because a powered off server’s storage with its sensitive code has no power and cannot be accessed. We have discussed two patently false technical details in the Bloomberg article.
Er... couldn't a hypothetical backdoor BMC chip... turn the server back on? And then off again when it's done?
- mjevans 8y agoSince I couldn't flash my own OS in to the BMC components, where I work those ports and the 'combo' bmc+normal ports are not used on public facing networks. A BMC really should be just a fully open minicomputer. Ideally there'd be a slot for something like a Raspberry PI to be used as an add-on BMC card.
- Teknoman117 8y agoI'd really like there to be more servers which support OpenBMC.