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Installing PostgreSQL 16 on CentOS Stream 9: A Survival Guide for Production Environments

By admin May 27, 2026

A production-ready guide for installing PostgreSQL 16 on CentOS Stream 9. This article focuses on SELinux, Firewalld security, and practical performance tuning tips.

Database

Optimizing PostgreSQL Dashboards: Speed up Queries 100x with Materialized Views

By admin May 27, 2026

Discover the power of Materialized Views in PostgreSQL. An optimal solution to make dashboards load instantly by storing pre-calculated query results.

Centos

Setting Up a Local Yum/DNF Repository: A Lifesaver for Slow Networks or Offline Environments

By admin May 27, 2026

A detailed guide on self-hosting a Local Yum/DNF Repository. An optimal solution to speed up software installation and manage Linux servers in local networks or offline environments.

Fedora

Configuring Snapper on Fedora: The Ultimate “Undo Button” Before DNF Updates

By admin May 27, 2026

Forget the fear of system failure after DNF updates. A detailed guide on configuring Snapper on Fedora to automatically create Btrfs snapshots and quickly rollback.

Ubuntu

Logwatch: Condense Thousands of Ubuntu Log Lines into a Daily Email Report

By admin May 27, 2026

Learn how to install Logwatch on Ubuntu to automate system log monitoring. This guide provides detailed configuration to receive daily summary reports via email, saving server administration time.

Network

Mastering Nginx Stream Module: TCP/UDP Load Balancing for Databases, Redis, and MQTT

By admin May 27, 2026

A practical guide to using Nginx Stream Module for TCP/UDP load balancing for MySQL, Redis, and MQTT. Learn Layer 4 configuration, security optimization, and real-world troubleshooting tips.

MySQL

MySQL 8 Resource Groups: Don’t Let a “Heavy” Query Crash Your Entire Production System

By admin May 27, 2026

Learn how to use Resource Groups in MySQL 8 to isolate CPU for heavy queries, protecting your production system from server hangs and optimizing user latency.

Database

Barman: Professional PostgreSQL Production Backup Solution – From WAL Archive to PITR

By admin May 27, 2026

Don't let pg_dump keep you up at night. Detailed guide on using Barman for professional PostgreSQL backup management with second-precision data recovery (PITR).

Virtualization

Optimizing Huge Pages for Proxmox/KVM: Real-World Database Performance Tuning

By admin May 27, 2026

Accelerate Database and Redis on Proxmox by configuring Static Huge Pages. A detailed guide to reducing TLB misses and optimizing CPU performance by 10-15%.

Network

Deploying FreeRADIUS on Linux: The Standard AAA Solution for Enterprise Wi-Fi and VPN

By admin May 26, 2026

Managing Wi-Fi and VPN with shared passwords poses many risks. This guide helps you install FreeRADIUS on Linux for personalized AAA authentication, enhancing security and professionalism.

Advanced Docker Swarm: Rolling Updates, Placement Constraints, and Zero-Downtime Deployments

Hot Add CPU and RAM on VMware vSphere: Upgrade Virtual Machine Resources Without Rebooting

Docker-in-Docker (DinD) vs Docker-out-of-Docker (DooD): A Practical CI/CD Runner Setup Guide

Mastering /proc and /sys: Inspecting Linux Internals Without Third-Party Tools

Mastering DeepSeek-R1 on Linux: Optimizing “Home-Grown” Reasoning AI for Peak Performance

Dockerize WordPress: Accelerate Your MariaDB and Redis Cache Stack for Production

Automating File Monitoring with Python Watchdog: Stop Polling and Start Listening

Grafana Pyroscope: Hunting Down CPU and RAM “Hogs” Directly on Production

Mastering VMware Host Profiles: The Ultimate Way to Standardize ESXi Cluster Configurations

Varnish + Nginx: The Ultimate Lifesaver for High-Traffic Websites on Ubuntu

Installing PostgreSQL 16 on CentOS Stream 9: A Survival Guide for Production Environments

Optimizing PostgreSQL Dashboards: Speed up Queries 100x with Materialized Views

Setting Up a Local Yum/DNF Repository: A Lifesaver for Slow Networks or Offline Environments

Configuring Snapper on Fedora: The Ultimate “Undo Button” Before DNF Updates

Logwatch: Condense Thousands of Ubuntu Log Lines into a Daily Email Report

Mastering Nginx Stream Module: TCP/UDP Load Balancing for Databases, Redis, and MQTT

MySQL 8 Resource Groups: Don’t Let a “Heavy” Query Crash Your Entire Production System

Barman: Professional PostgreSQL Production Backup Solution – From WAL Archive to PITR

Optimizing Huge Pages for Proxmox/KVM: Real-World Database Performance Tuning

Deploying FreeRADIUS on Linux: The Standard AAA Solution for Enterprise Wi-Fi and VPN