Docke on RHEL9 Version: Docker version 28.0.4 How to use: Use the command: 'docker -v' to check the Docker version. To start/stop/status docker: use the command 'systemctl start/stop/status docker'. Docker is widely used for developing, shipping, and running applications inside containers. It provides a consistent environment and improves the portability and scalability of applications, making it a valuable tool for modern software development and operations.