Hardening SSH authentication using Yubikey (2/2)

In my previous blog post, I demonstrated how to use a Yubikey to add a 2nd factor (2FA) authentication to SSH using pam_ssh and pam_yubico. In this article, I will go further and demonstrate another method using Yubikey’s Personal Identity Verification (PIV) capability. This one has the huge advantage to allow a 2nd factor authentication […]