How To
Best Linux Books for SysAdmins in 2026
The irony of Linux books is that most of what you need to know is in man pages…
Category
Linux Tutorials
How To
Best AWS Certification Books for 2026
AWS certifications carry real weight on a resume. Hiring managers use them as a shortcut to gauge whether…
How To
Best CCNA 200-301 Books for 2026
Cisco updated the CCNA 200-301 exam objectives to version 1.1 in 2024, adding automation, programmability, and AI networking…
Databases
Best PostgreSQL Books for 2026
PostgreSQL dominates the open-source database space for a reason: it handles everything from a single-server blog backend to…
Ansible
Best Docker and Ansible Books for 2026
Docker and Ansible are two skills that show up in almost every DevOps job listing, and for good…
How To
Best RHCSA Certification Study Books for 2026
The RHCSA (EX200) is the most recognized Linux certification in enterprise environments. It validates that you can perform…
How To
Best CompTIA Security+ (SY0-701) Books for 2026
CompTIA Security+ (SY0-701) is the entry-level security certification that most IT departments recognize. The exam was overhauled with…
How To
Best Kubernetes Books for 2026
Kubernetes moves fast. The book you bought 18 months ago might still cover the fundamentals, but it probably…
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…
Databases
PostgreSQL vs MySQL vs MariaDB: Performance Benchmark (2026)
PostgreSQL, MySQL, and MariaDB handle the same SQL, but their storage engines, query optimizers, and concurrency models produce…
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…