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

By IT From Zero 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 IT From Zero 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 IT From Zero 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 IT From Zero 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 IT From Zero 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 IT From Zero 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.

Virtualization

As Fast as Physical Drives: Configuring KVM Shared Folders with virtiofs

By IT From Zero May 26, 2026

A guide to configuring virtiofs for KVM virtual machines to achieve near-native file sharing speeds. The perfect alternative to 9p and NFS.

Git

Securing Secrets in Git with git-crypt: Encrypt Sensitive Files Without a Vault

By IT From Zero May 26, 2026

Exposing secrets on Git is a nightmare for any developer. This guide shows you how to use git-crypt to automatically encrypt .env files and API keys, ensuring team security without complex setups.

Git

Git Config ‘Switching’: Automatically Change Email and SSH Keys by Directory

By IT From Zero May 26, 2026

Learn how to use Git includeIf to automatically switch your Email, Name, and SSH Key based on project directories. The ultimate solution for developers managing multiple Git accounts.

Linux

Managing Dotfiles with GNU Stow: Don’t Let Reinstalling Your System Be a Nightmare

By IT From Zero May 26, 2026

Reinstalling Linux is no longer a nightmare. Discover how to use GNU Stow for professional Dotfiles management, syncing your configurations via Git in just one minute.

MySQL Group Replication Tutorial: Building an Auto-Failover InnoDB Cluster

OpenSCAP Guide for Linux: Automated Scanning and CIS Benchmark Remediation

A Guide to Configuring Table Partitioning in MySQL: Boosting Large Table Performance with RANGE and LIST

How to Install and Configure Fail2ban on Linux: Block SSH and Web Server Brute-Force Attacks

Configuring kdump on Fedora Server: Capturing Kernel Panics and Analyzing Crash Dumps

Kokoro-TTS Setup and Usage Guide: Building an Offline AI Text-to-Speech System on Linux

Real-Time File Synchronization on CentOS Stream 9 with Lsyncd and Rsync: A Production-Grade Setup

How to Use Rclone on Ubuntu to Automate Data Backups to Google Drive, S3, and OneDrive

Installing and Configuring AIDE on CentOS Stream 9: File Integrity Monitoring and Tamper Detection

How to Monitor HashiCorp Vault with Prometheus and Grafana: Tracking Token Leases, Request Latency, and Unseal Status

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

As Fast as Physical Drives: Configuring KVM Shared Folders with virtiofs

Securing Secrets in Git with git-crypt: Encrypt Sensitive Files Without a Vault

Git Config ‘Switching’: Automatically Change Email and SSH Keys by Directory

Managing Dotfiles with GNU Stow: Don’t Let Reinstalling Your System Be a Nightmare