How To Install pam_2fa on CentOS 7
Introduction
In this tutorial we learn how to install pam_2fa on CentOS 7.
What is pam_2fa
The PAM 2FA module provides a second factor authentication, which can be combined with the standard PAM-based password authentication to ask for * What you know * What you have (pick one of) * A Google Authenticator Application on your phone * A Phone Number capable of receiving SMS * A Yubikey
We can use yum or dnf to install pam_2fa on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install pam_2fa.
Install pam_2fa on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install pam_2fa using yum by running the following command:
sudo yum -y install pam_2fa
Install pam_2fa on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install pam_2fa using dnf by running the following command:
sudo dnf -y install pam_2fa
How To Uninstall pam_2fa on CentOS 7
To uninstall only the pam_2fa package we can use the following command:
sudo dnf remove pam_2fa
References
Summary
In this tutorial we learn how to install pam_2fa on CentOS 7 using yum and dnf.
