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Securely wiping SSDs
Wiping data carriers can protect personal data when reselling these. Since SSDs have quite some error-handling and buffering logic, these are more difficult to wipe.
I document my best-known method here. TL;DR: as commenters pointed out, ideally use OS-level encryption, then throw away the key. Alternatively, built-in security erasing via hdparm, combined with shred.
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I document my best-known method here. TL;DR: as commenters pointed out, ideally use OS-level encryption, then throw away the key. Alternatively, built-in security erasing via hdparm, combined with shred.
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ESP8266 sensing CO2 + Temp + RH + Pressure
I've progressed somewhat in home-integrated sensors, and I've established a baseline for a connected home-environment sensor, which I document here.
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