Table of Contents

1. Challenge

   Log in to the Ansible Control Node Server and Change to the `ansible` User

   1. Sign in to the Ansible Control Node server using the cloud_user credentials, and change to the ansible user.

   2. Test that Ansible is working:

      ansible all -m ping
      

      Note: It may take several minutes after the start of the lab, for the test to work as expected.

2. Challenge

   Use an Ad Hoc Ansible Command to Check the Uptime on All the Nodes

   1. Show the uptime on all the servers:

      ansible all -a /usr/bin/uptime
      

3. Challenge

   Create a Playbook Called `selinux-check.yml`and Ensure SELinux Is Enabled on All Nodes

   1. Use the selinux module and create a playbook called selinux-check.yml:

      vim selinux-check.yml
      

   2. Check the playbook, ensuring all the nodes have SELinux installed and that it's set to enabled on all nodes.

   Note: More information about the selinux module can be found here: https://docs.ansible.com/ansible/latest/modules/selinux_module.html

4. Challenge

   Test the Playbook `selinux-check.yml` to Ensure It Works

   1. Test the playbook selinux-check.yml against all the nodes and ensure there are no errors:

      ansible-playbook selinux-check.yml
      

5. Challenge

   Create a Playbook Called `firewalld.yml` and Verify the Installation of `firewalld`

   1. Use the firewalld module (and any other modules as required) in a playbook called firewalld.yml to ensure firewalld is installed, enabled, and started on all the nodes.

   Note: More information about the firewalld module can be found here: https://docs.ansible.com/ansible/latest/modules/firewalld_module.html?highlight=firewalld

6. Challenge

   Test the `firewalld.yml` Playbook and Verify Task Completion

   1. Test the playbook and ensure that firewalld is installed, enabled, and started on each of the nodes:

      sudo systemctl status firewalld