FOSS Alternatives to Enterprise Tools: Break Free from Vendor Lock-In
Practical FOSS alternatives to replace expensive enterprise tools like Jira, Confluence, Slack, and more. Build your self-hosted infrastructure with open-source software.
Devops
SNMP in Linux: Practical Setup, Secure Defaults, and Useful Commands
A short practical guide to SNMP on Linux: what it is, when to use it, secure SNMPv3 setup, useful commands, and troubleshooting.
Linux NTP: Practical Settings and Usage
A short practical guide to configure NTP on Linux using chrony, systemd-timesyncd, and ntpd, with simple verification and troubleshooting steps.
Syslog Essentials: Forward Logs & Key Configurations (Practical Guide)
Practical guide to syslog: minimal setup for log forwarding, useful filters, and essential configurations with real examples.
Guix and Nix Packages: Reproducible Builds and Declarative Systems
Short practical guide to Guix and Nix package concepts, benefits, and how to build packages and systems.
Create a Fedora RPM Package: Real Hello World Example
Short practical guide to build a real RPM package on Fedora with a Hello World script.
Create a Debian (.deb) Package: Real Hello World Example
Short practical guide to create a real .deb package containing a Hello World shell script.
Linux Process Prioritization: nice, renice, and Practical Tuning
A short and practical guide to Linux process prioritization with nice, renice, ionice, chrt, and CPU affinity commands.
Monolithic vs Microservices vs Service-Oriented Architecture (SOA)
A practical guide to understanding the most common software architecture styles, their advantages, disadvantages, and when to use each one.
What Is a Reverse Proxy? A Simple Beginner Guide with Docker and Nginx
A beginner-friendly explanation of reverse proxy, with a local Docker Compose and Nginx example using a configurable .env file.