--- title: Learn Computing from the Experts | The Rheinwerk Computing Blog | Rheinwerk Computing (21) description: Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes books by leading experts in the fields of programming, administration, security, analytics, and more. (21) --- [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://blog.rheinwerk-computing.com/) [Blog](https://blog.rheinwerk-computing.com) - Books - Get an overview of our wide selection of books on every relevant computing topic. - [General Computing](https://www.sap-press.com/rheinwerk-computing/general-computing/) - [DevOps](https://www.sap-press.com/rheinwerk-computing/devops/) - [Programming Languages](https://www.sap-press.com/rheinwerk-computing/programming-languages/) - [Security](https://www.sap-press.com/rheinwerk-computing/security/) - [Software Development](https://www.sap-press.com/rheinwerk-computing/software-development/) - Book Subscription - Get unlimited access to all Rheinwerk Computing books! - [Programming Subscription](https://sap-press.com/subscriptions/) ![](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Enumerations%20and%20Flags%20in%20Python%20Programming.jpg?width=1000&name=Enumerations%20and%20Flags%20in%20Python%20Programming.jpg) [Featured](https://blog.rheinwerk-computing.com/tag/featured) | Featured article ## [Enumerations and Flags in Python Programming](https://blog.rheinwerk-computing.com/enumerations-and-flags-in-python-programming) In this post, we’ll describe *enumerations*, another interesting data type that Python makes available to the developer as part of the standard library. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/enumerations-and-flags-in-python-programming) ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) **Rheinwerk Computing** Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes books by leading experts in the fields of programming, administration, security, analytics, and more. # Blogs by Rheinwerk Computing [![How to Use Efficient and Simple CSS](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Use%20Efficient%20and%20Simple%20CSS.png?height=600&name=How%20to%20Use%20Efficient%20and%20Simple%20CSS.png)](https://blog.rheinwerk-computing.com/how-to-use-efficient-and-simple-css) [HTML & CSS](https://blog.rheinwerk-computing.com/tag/html-css) ## [How to Use Efficient and Simple CSS](https://blog.rheinwerk-computing.com/how-to-use-efficient-and-simple-css) Using CSS can make your web development life easier. In this blog post, we present a little guide on how to write the most efficient and simple CSS... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-use-efficient-and-simple-css) [![The Grafana-Docker Setup](https://blog.rheinwerk-computing.com/hs-fs/hubfs/The%20Grafana-Docker%20Setup.png?height=600&name=The%20Grafana-Docker%20Setup.png)](https://blog.rheinwerk-computing.com/the-grafana-docker-setup) [DevOps](https://blog.rheinwerk-computing.com/tag/devops) ## [The Grafana-Docker Setup](https://blog.rheinwerk-computing.com/the-grafana-docker-setup) In this blog post, we’ll describe a Docker setup in which Grafana works with a database and a collector. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/the-grafana-docker-setup) [![What Is the Spring Expression Language (SpEL)?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20the%20Spring%20Expression%20Language.png?height=600&name=What%20Is%20the%20Spring%20Expression%20Language.png)](https://blog.rheinwerk-computing.com/what-is-the-spring-expression-language) [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) ## [What Is the Spring Expression Language (SpEL)?](https://blog.rheinwerk-computing.com/what-is-the-spring-expression-language) In Spring, the *Spring Expression Language (SpEL)* provides a powerful syntax for querying and manipulating objects at runtime. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-is-the-spring-expression-language) [![What Is the International Software Architecture Qualification Board and Its Certifications?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20the%20International%20Software%20Architecture%20Qualification%20Board%20and%20Its%20Certifications.png?height=600&name=What%20Is%20the%20International%20Software%20Architecture%20Qualification%20Board%20and%20Its%20Certifications.png)](https://blog.rheinwerk-computing.com/what-is-the-international-software-architecture-qualification-board-and-its-certifications) [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) ## [What Is the International Software Architecture Qualification Board and Its Certifications?](https://blog.rheinwerk-computing.com/what-is-the-international-software-architecture-qualification-board-and-its-certifications) Software architecture is an extremely young discipline, and, despite many publications on the subject, various opinions still exist regarding its... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-is-the-international-software-architecture-qualification-board-and-its-certifications) [![Why Choose the Rheinwerk Computing Learning Center? Comprehensive Learning Paths Explained](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Why%20Choose%20the%20Rheinwerk%20Computing%20Learning%20Center%20Comprehensive%20Learning%20Paths%20Explained.png?height=600&name=Why%20Choose%20the%20Rheinwerk%20Computing%20Learning%20Center%20Comprehensive%20Learning%20Paths%20Explained.png)](https://blog.rheinwerk-computing.com/why-choose-the-rheinwerk-computing-learning-center-comprehensive-learning-paths-explained) [Java](https://blog.rheinwerk-computing.com/tag/java) ## [Why Choose the Rheinwerk Computing Learning Center? Comprehensive Learning Paths Explained](https://blog.rheinwerk-computing.com/why-choose-the-rheinwerk-computing-learning-center-comprehensive-learning-paths-explained) The Rheinwerk Computing Learning Center stands out as a premier destination for anyone eager to dive into the expansive world of computing and IT. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/why-choose-the-rheinwerk-computing-learning-center-comprehensive-learning-paths-explained) [![The Ethics of Hacking: When Shouldn't You Hack?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/The%20Ethics%20of%20Hacking%20When%20Shouldnt%20You%20Hack.png?height=600&name=The%20Ethics%20of%20Hacking%20When%20Shouldnt%20You%20Hack.png)](https://blog.rheinwerk-computing.com/the-ethics-of-hacking-when-shouldnt-you-hack) [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) ## [The Ethics of Hacking: When Shouldn't You Hack?](https://blog.rheinwerk-computing.com/the-ethics-of-hacking-when-shouldnt-you-hack) Although the exact wording varies, hacking without permission is a criminal offense in most countries. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/the-ethics-of-hacking-when-shouldnt-you-hack) [![How Low-Code/No-Code Development Empowers Innovation](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20Low-CodeNo-Code%20Development%20Empowers%20Innovation.png?height=600&name=How%20Low-CodeNo-Code%20Development%20Empowers%20Innovation.png)](https://blog.rheinwerk-computing.com/how-low-code/no-code-development-empowers-innovation) [Programming](https://blog.rheinwerk-computing.com/tag/programming) ## [How Low-Code/No-Code Development Empowers Innovation](https://blog.rheinwerk-computing.com/how-low-code/no-code-development-empowers-innovation) In the ever-evolving landscape of software development, a revolutionary approach has emerged—low-code/no-code development. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-low-code/no-code-development-empowers-innovation) [![Playgrounds for Using the React Library](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Playgrounds%20for%20Using%20the%20React%20Library.png?height=600&name=Playgrounds%20for%20Using%20the%20React%20Library.png)](https://blog.rheinwerk-computing.com/playgrounds-for-using-the-react-library) [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) ## [Playgrounds for Using the React Library](https://blog.rheinwerk-computing.com/playgrounds-for-using-the-react-library) To quickly try something with React or get an initial feel for the library, you don't necessarily need to install anything on your system. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/playgrounds-for-using-the-react-library) [![Installation Variants for Linux](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Installation%20Variants%20for%20Linux.png?height=600&name=Installation%20Variants%20for%20Linux.png)](https://blog.rheinwerk-computing.com/installation-variants-for-linux) [Administration](https://blog.rheinwerk-computing.com/tag/administration) ## [Installation Variants for Linux](https://blog.rheinwerk-computing.com/installation-variants-for-linux) There are various ways to install Linux. This blog post provides an initial overview of installation media, installers, and installation locations. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/installation-variants-for-linux) [![Detecting Malicious Code in Microsoft 365](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Detecting%20Malicious%20Code%20in%20Microsoft%20365.png?height=600&name=Detecting%20Malicious%20Code%20in%20Microsoft%20365.png)](https://blog.rheinwerk-computing.com/detecting-malicious-code-in-microsoft-365) [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) ## [Detecting Malicious Code in Microsoft 365](https://blog.rheinwerk-computing.com/detecting-malicious-code-in-microsoft-365) In Microsoft 365, Exchange Online provides a solid signature-based basic email protection with *Exchange Online Protection* (EOP). ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/detecting-malicious-code-in-microsoft-365) - - [1](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/1) - [...](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/16) - [19](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/19) - [20](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/20) - [21](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/21) - [22](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/22) - [23](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/23) - [...](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/26) - [29](https://blog.rheinwerk-computing.com/author/rheinwerk-computing/page/29) - ### Blog Topics - [All Topics](https://blog.rheinwerk-computing.com) - [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) - [How To](https://blog.rheinwerk-computing.com/tag/how-to) - [DevOps](https://blog.rheinwerk-computing.com/tag/devops) - [Featured](https://blog.rheinwerk-computing.com/tag/featured) - [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) - [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) - [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) - [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) - [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) - [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) **Subscribe to our blog!**Get notified about future blog updates. - - - ### Most Popular Blog Posts 1. [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) [What Is the Basic Structure of a Python Program?](https://blog.rheinwerk-computing.com/what-is-the-basic-structure-of-a-python-program) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 2. [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) [11 Linux Shell Commands for Hacking and Security](https://blog.rheinwerk-computing.com/11-linux-shell-commands-for-hacking-and-security) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 3. [HTML & CSS](https://blog.rheinwerk-computing.com/tag/html-css) [Twelve-Factor App Principles for Developers](https://blog.rheinwerk-computing.com/twelve-factor-app-principles-for-developers) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 4. [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) [What Are the 4 Principles of Cryptography?](https://blog.rheinwerk-computing.com/what-are-the-4-principles-of-cryptography) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) 5. [User Experience](https://blog.rheinwerk-computing.com/tag/user-experience) [How to "Do" UX Design: A Guide to the ISO 9241-210 Standard](https://blog.rheinwerk-computing.com/how-to-do-ux-design-a-guide-to-the-iso-9241-210-standard) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) **Subscribe to our blog!**Get notified about future blog updates. - - - ### The official Rheinwerk Computing Blog Rheinwerk Computing is an imprint of Rheinwerk Publishing and publishes resources that will help you accelerate your computing journey. The Rheinwerk Computing Blog is designed to provide helpful, actionable information on a variety of topics, including programming, administration, security, and analytics! ### Blog Topics - [All Topics](https://blog.rheinwerk-computing.com) - [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) - [How To](https://blog.rheinwerk-computing.com/tag/how-to) - [DevOps](https://blog.rheinwerk-computing.com/tag/devops) - [Featured](https://blog.rheinwerk-computing.com/tag/featured) - [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) - [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) - [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) - [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) - [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) - [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) ### Blog curated by [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://www.sap-press.com/rheinwerk-computing/) [Visit Rheinwerk Computing Store](https://www.sap-press.com/rheinwerk-computing/) ### About - [Home](https://sap-press.com/) - [About Us](https://sap-press.com/the-publisher/) - [Contact](mailto:info@rheinwerk-publishing.com) - [Legal Notes](https://sap-press.com/legal-notes/) - [Privacy Policy](https://sap-press.com/privacy/) - [Terms of Use](https://sap-press.com/terms/) © 2026 Rheinwerk Publishing, Inc. | Change Privacy Options