Rationale As a Java programmer, I work on various projects based on different Java versions, especially since the transition to the six-month release cycle. From time to time, I also have a piece of Java code that I want to try out on different Java versions – on the command line without having to click …
How to switch between multiple Java versions under Windows Read More »
The following is a list of the most important books for programmers. These books are on the topics programming in general, Java programming, personality development and career development. I have read all recommended books. The list is not complete, there are a lot more great books I have on my “to read” list. I will …
This is not going to be a technical article. Instead, I want to show you why, as a software developer, you should write a developer blog, how it will get you ahead and how to get started. I am still pretty much at the beginning of my blogger career: I only started last year in …
After describing the technical basics of a Linux installation (BIOS, UEFI, MFB, GPT, GRUB, SEDs, LUKS) in the second part of the series, I will guide you step by step through the installation of Manjaro Linux on the Dell XPS 15 9570 in this third and last part. Hardware upgrade of the Dell XPS 15 …
Manjaro tutorial: installing Manjaro Linux on a Dell XPS 15 9570 Read More »
In part 1 – Which Linux is best for a Java developer? – I decided to install Manjaro Linux on a Dell XPS 15 9570. In this part, I will explain some important basics you should know about installing Linux. Not that easy after all After installing Manjaro as a VM on my Windows computer …
Manjaro tutorial: BIOS, UEFI, MFB, GPT, GRUB, SED, LUKS Read More »
In my first article, “setup of a dedicated server with Ansible,” I mentioned that I have been a satisfied Windows user for decades. But a few weeks ago, I had the following problem: I wanted to try Project Loom, an implementation of lightweight threads (“fibers”) and continuations in Java. The project is still in the …
Manjaro tutorial: Which Linux is best for Java developers? Read More »
In the third article of this series, I set up Docker, MySQL and WordPress with Ansible on my server. In this fourth and final article, I will show you how to set up HAProxy – again with Ansible – as well as a free HTTPS certificate from Let’s Encrypt / CertBot to make the website …
Ansible tutorial: setup of HAProxy and HTTPS from Let’s Encrypt with Ansible Read More »
In the first two parts of this tutorial series, I showed you how I installed the operating system image with Ansible on a root server of Hetzner and created user accounts, optimized the SSH configuration and configured the firewall. In this third part of the Ansible tutorial, I will show you how to install Docker …
Ansible tutorial: setup of Docker, MySQL and WordPress with Ansible Read More »
In the first part of this tutorial series, I showed you how to install the operating system image on a Hetzner root server using Ansible. The second part of my Ansible tutorial is about “bootstrapping” the server. Under the term “bootstrapping”, I summarize all actions that will be the same for all servers, regardless of …
Ansible tutorial: setup of user accounts, SSH and firewall with Ansible Read More »
Hello, since this is my first article on HappyCoders.eu, I want to introduce myself briefly: My name is Sven Woltmann, I have been programming for 35 years (20 years professionally) and my main focus is on backend and microservice development with Java and the Spring framework. I have founded several startups and have been CTO …
Ansible tutorial: setup of a dedicated server with Ansible Read More »