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DevOps

Tutorials for developers about devops. Complete your developer skills with a basic knowledge of infrastructure, continuous integration and system administration.

Tutorials

What is a port?

TCP/IP explained.

How to display the ARP cache on Linux?

Find the MAC addresses of machines on my network.

Bash : automatically exit the script if a variable is not set

Use the command set -u for testing variable initialization.

Bash : automatically exit the script if a command fails

Use the command set -e for testing the return code.

How to find my Linux version?

Debian, Ubuntu, Fedora? Find the name and the version of your distribution.

What is a cache?

How to increase the speed of your website? Which strategy to adopt? Why is cache invalidation so difficult?

Kafka, what is it?

A quick explanation of Kafka for beginners with examples. Why use it? How does it work?

Kubernetes, what is it?

A quick explanation of Kubernetes for beginners. Why use it? How does it work? Where to start?

Nginx, what is it?

A quick explanation of Nginx for beginners. Why use it? How does it work? Where to start?

Docker Compose, what is it?

A quick explanation of Docker Compose for beginners. Why use it? How does it work? Where to start?

Docker, the basic commands

A summary of the most useful docker commands. How to execute bash in a container? How to export an image?

Docker, my first container

Main commands for starting with Docker. How to run a container? How to see which container is running?

Docker, what is it?

A quick explanation of Docker for beginners. Why use it? How does it work? Where to start?

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