Set Up SSH Two-Factor Authentication (2FA) on CentOS/RHEL Server

This tutorial will show you how to set up SSH two-factor authentication on CentOS/RHEL server using the well-known Google Authenticator. It will greatly improve the security of SSH service on your CentOS/RHEL server. How Two-Factor Authentication Works Usually you only need to enter a password or use SSH key to log in to your remote…


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Set Up SSH Two-Factor Authentication (2FA) on CentOS/RHEL Server