med unes | iximiuz Labs

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Tutorial on Security, Linux

Combining 2FA and Public Key Authentication for a better Linux SSH security

by med unes

Take a stock Debian SSH server and harden it the way you would in production: replace passwords with public-key auth, disable root login, add a TOTP second factor with PAM, and move off port 22, then prove it works by logging in, all inside the playground.

Combining 2FA and Public Key Authentication for a better Linux SSH security (cover image)

ssh 2fa pam

Materials by med unes

Tutorials by med unes

Combining 2FA and Public Key Authentication for a better Linux SSH security