In this challenge, you will secure SSH access to a server. First, you will create a new group, and then you will create two new users and add the users to the new group. Next, you will configure passwordless authentication, and then you will prevent the root user from logging in via SSH. Finally, you will restrict SSH access to users from a specified network, and then you will configure SSH to run on a non-standard port. Once you begin the challenge, you will not be able to pause, save, or return to your challenge. Please ensure that you have set aside enough time to complete the challenge before you start.
Learning Objectives
In this challenge, you will secure SSH access to a server. First, you will create a new group, and then you will create two new users and add the users to the new group. Next, you will configure passwordless authentication, and then you will prevent the root user from logging in via SSH. Finally, you will restrict SSH access to users from a specified network, and then you will configure SSH to run on a non-standard port. Once you begin the challenge, you will not be able to pause, save, or return to your challenge. Please ensure that you have set aside enough time to complete the challenge before you start.