You can connect several containers with each other to communicate directly through a dedicated network. This is recommended if you want to setup a system of microservices and you want to run services separate in their own Docker containers.

This is an introduction on how to use Docker. You can create Docker containers to improve the for example the administration of hosted services on your server.

You can also tweet your Icinga2 notification on your Twitter account. This notification method can run additionally to your existing notification methods such as e-mail, etc.

How to use a shell script to make automatic announcements in audio format. This can be used, for example, to automatically output error messages (from services, applications), messages or the weather via an audio interface (e.g.: Internet radio station in the intranet or Internet, RSS podcast, etc.).