How can we install it on the server?

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These steps generally cover the process of setting up and configuring two-factor authentication. However, there may be some differences depending on the specific needs of your server and the distribution used. Therefore, it is important to carefully review your operating system documentation and related resources and seek support as needed.

Step 1: Install Google Authenticator.

1.1. Connect to your Linux server via SSH and tunisia mobile phone number log in with root privileges.

1.2. We will use Google Authenticator as the second verification, so first install the package “ libpam-google-authenticator ”. Install this package using your package manager for different Linux distributions. For example, on Ubuntu or Debian you can use the following command:

sudo apt-get install libpam-google-authenticator

Step 2: Change SSH Configurations

2.abled on your SSH server. After entering your username and password when connecting to the server via SSH, you will be prompted to enter a verification code. This code must be regenerated for each session that is updated in your authenticator app.


Two-factor authentication will now be used for SSH logins. Users will be required to provide both public key authentication and the second authentication factor.

Additionally, each user needs to set up two-factor authentication on their own account. That is, each user must follow these steps for their own account.

These steps generally cover the steps to enable two-factor authentication over SSH. However, there may be some differences depending on your operating system or distribution. In this case, it is recommended to refer to the relevant documentation and resources. It is also important to regularly check for operating system and application updates and patch security holes.Active Directory (AD) is a directory service developed by Microsoft. AD is used to facilitate the management of users, groups, computers, and other network resources in a network environment.