Set up multi factor authentication5/15/2023 Answer the rest of the questions to complete the process. Using an authenticator app like Google Authenticator on a smartphone, scan the QR code generated from the above command. This generates a QR code on the screen, a secret key, and recovery codes. Do you want authentication tokens to be time-based (y/n) y For most of these questions, answer yes ( y), unless you need something other than the default. Run the following command to begin the configuration process: # google-authenticator Next, configure google-authenticator to generate OTP codes. To do so, open a Terminal window and run the following command: # sudo dnf install google-authenticator -y ![]() Implement the Google Authentication moduleįirst, install the Google Authentication module on a Linux machine. In this article, we use the Google PAM module to enable MFA so users can log in by using time-based one-time password (TOTP) codes. ![]() Pluggable Authentication Modules (PAM) are the authentication mechanism used in Linux. The additional information may be a one-time password (OTP) sent to your cell phone via SMS or credentials from an app like Google Authenticator, Twilio Authy, or FreeOTP. Multi-factor authentication requires users to provide more than one piece of information to authenticate successfully to an account or Linux host. When you SSH into a Linux machine, you may be asked for an SSH key pair. Usually, when you sign in to an account or device, you are asked for a username and password. Multi-factor authentication (MFA) is a method of requiring more than one credential to prove your identity. One way to achieve added security is by adding an extra layer of authentication. ![]() With the rising number of breaches and password compromises, we need as many security layers as possible. ![]() Old Linux commands and their modern replacements.Linux system administration skills assessment.A guide to installing applications on Linux.Download RHEL 9 at no charge through the Red Hat Developer program.
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