For this chapter, you'll need one or two virtual machines running a Linux distribution. You can use the smallest size if you want. The audit daemon must be installed and, for the purpose of having something to analyze, it's a good idea to install Apache and a MySQL/MariaDB server.
Here is an example in CentOS:
sudo yum groups install "Basic Web Server"
sudo yum install mariadb mariadb-server
sudo yum install setroubleshoot
sudo systemctl enable --now apache2
sudo systemctl enable --now mariadb
In this chapter, the Azure management and operations management suite are covered. The agent that is needed to collect information from the virtual machine is not supported in every Linux distribution; please visit https://docs.microsoft.com/en-us/azure/virtual-machines/extensions/oms-linux before making a decision about which distribution you want...