This is an introduction on how to improve your security of your Linux server. The mentioned applications are available for Ubuntu 16.04 and newer.

Make your app multilingual with the Angular package "localize".This package allows you to generate "xlf" files which contain texts of every HTML tags (marked with "i18n") and strings with the command "localize" from your Angular application.

You can use magic methods (also called dunder methods) in your Python class to override certain functionality of your class instance.

You will learn the basics on how to use dialogs in "Angular". A dialog with a "mat-select" form element will be created.