Databases
Install OrientDB on Ubuntu 26.04 / 24.04 / 22.04
Most NoSQL setups make you pick a data model up front. OrientDB does not. It is a Java…
Tag
java
How To
Install DSpace 9 on Ubuntu 26.04 / 24.04 LTS
DSpace powers most of the world’s institutional repositories: universities, research libraries, museums, and government archives all run on…
AlmaLinux
Install DSpace 9 on Rocky Linux 10 / AlmaLinux 10
DSpace is the open-source repository platform that powers thousands of academic, scientific, and cultural collections worldwide, from MIT…
Dev
Install Java (OpenJDK 25) on Ubuntu 26.04 LTS
Ubuntu 26.04 ships OpenJDK 25 as the default JDK. That’s the latest non-LTS release, and it’s what you…
Linux Tutorials
Install Java JDK 21 on Kali Linux
A lot of the pen-testing toolkit that Kali ships with assumes a working Java runtime somewhere on the…
Ansible
Install Apache Tomcat Using Ansible on Ubuntu / Rocky Linux / Debian
Deploying Tomcat by hand on every server gets old fast, especially when you’re managing multiple environments across different…
Dev
Configure JAVA_HOME on Rocky Linux / RHEL / Fedora
JAVA_HOME is the single environment variable that every Java tool checks first. Tomcat, Maven, Gradle, Elasticsearch, Jenkins, and…
Dev
Install Java (OpenJDK) on Fedora 42 / 41
Fedora 42 ships three OpenJDK versions in its default repositories: Java 21 (LTS), Java 25, and Java 26…
Books
Best Spring Boot Books for 2026
Spring Boot 3 was a major release: it moved from Java EE to Jakarta EE namespace, dropped Java…
Ubuntu
Switch Default Java Version on Ubuntu / Debian
When multiple Java versions are installed on the same system, only one can be the default. The wrong…
Rocky Linux
Install Java 25 (JDK 25) on Rocky Linux 10 / AlmaLinux 10
Rocky Linux 10 and AlmaLinux 10 ship OpenJDK 25 and OpenJDK 21 in their default AppStream repository. Both…
Ubuntu
Install Java 25 (JDK 25) on Ubuntu 24.04 / 22.04
JDK 25 landed as the next long-term support release with eight years of patches ahead of it (through…