John Goerzen’s Easily Using SSH with FIDO2/U2F Hardware Security Keys came up yesterday, and I thought it was a good time to fix my mess of private keys. I already own a YubiKey 5C Nano, which sits in my laptop at all times, as well as a 5C NFC, which I figured I could use hopefully with both my phone (NFC) and tablet (USB-C) for SSH when needed. The ideal was to drop all non-SK keys, and use move to using agent forwarding exclusively when authenticating between hosts — rarely needed, but nice fo
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