MFA Tutorial – Yubikey Usage for both Console and SSH
For a while now I’ve been curious about the application of multi-factor authentication for Linux console and SSH access. It’s a particularly challenging use-case, especially if you operate in an air-gapped configuration, and yet need to meet industry standards such as PCI’s Control 8.5.1, or NIST 800-53’s Control IA-2(1). Multi-factor is essentially a requirement to …
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