Fundamental Tutorials of HTML
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How to Change the Root Password in a Docker Image
Learn how to set a root password on a running Docker container and commit the change to a new image — a practical step toward hardening official base images like CentOS.
How to Run a Web Server in a Docker Container
Learn how to write a Dockerfile, build a custom Nginx web server image, and run it as a Docker container with port mapping — a practical introduction for DevOps engineers.