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Optimizing my.cnf for MySQL 8: Don’t Let Your Server ‘Choke’ on Default Settings

By admin June 28, 2026

MySQL 8's default configuration is often underpowered. This guide shows you how to optimize my.cnf to maximize RAM and CPU usage for better database load handling.

Virtualization

Managing KVM via Web with Kimchi and Wok: Lightweight, Smooth, and a True Virt-manager Alternative

By admin June 26, 2026

Forget Virt-manager! A detailed guide to installing Kimchi and Wok to manage KVM virtual machines directly from your browser — lightweight, smooth, and perfect for Linux servers.

Linux

Linux Compression and Extraction: Don’t Let Your Server Hang by Choosing the Wrong Format

By admin June 25, 2026

Discover how to use tar, gzip, xz, and zstd to optimize Linux server storage. This article provides practical comparisons and tips for monitoring large file compression progress.

Linux

How to Configure kdump on Linux: Collecting Kernel Crash Dumps and Analyzing Critical System Failures

By admin June 25, 2026

kdump captures the entire state of RAM at the moment of a kernel panic — before the system has a chance to reboot. It is the only tool that allows sysadmins to investigate the root cause of a server crash when the logs record nothing. This guide covers installing and configuring kdump on RHEL/CentOS/Ubuntu, safely triggering a test crash, and analyzing vmcore files with the crash tool.

Linux

Automated Temporary File Management with systemd-tmpfiles: Don’t Let Your Server Die from Junk

By admin June 25, 2026

Avoid server downtime due to full disks. Learn how to use systemd-tmpfiles to automatically clean up temporary files and manage Linux system directories professionally and safely.

Ubuntu

Automating Ubuntu Security Patches: How to Use unattended-upgrades Effectively

By admin June 23, 2026

Configure unattended-upgrades to automatically install security patches on Ubuntu, reducing your attack surface and saving time on routine server administration.

Linux

Protecting Linux Files From Root: Mastering chattr and lsattr

By admin June 22, 2026

Root privileges aren't the final word. Discover the power of chattr and lsattr to lock files, prevent accidental deletion, and harden your Linux server security.

Centos

How to Use sosreport on CentOS Stream 9: Collect and Analyze System Information for Professional Troubleshooting

By admin June 20, 2026

sosreport is Red Hat's official tool for collecting complete system information with a single command, replacing the need to run dozens of manual commands every time an incident occurs. This article compares different approaches to information gathering, weighs their pros and cons, and walks through a practical sosreport deployment on CentOS Stream 9 — including a script you can integrate directly into your incident response workflow.

Network

Configuring iSCSI Multipathing on Linux: Maximize Bandwidth and SAN Connection Redundancy

By admin June 20, 2026

A complete guide to configuring iSCSI Multipathing on Linux, from basic setup to advanced tuning: establish multiple parallel connections to SAN storage to increase bandwidth and ensure redundancy when a path fails. Covers load balancing configuration, jumbo frames, real-world failover testing, and troubleshooting.

Artificial Intelligence tutorial - IT technology blog

Building an Intelligent Alert System with LLM: Automatically Classifying and Summarizing Prometheus Alerts to Reduce Alert Fatigue

By admin June 15, 2026

A hands-on guide to building a Prometheus alert classification and summarization system using LLM, helping SysAdmins escape alert fatigue. Compares rule-based, ML, and LLM approaches, with a complete Python webhook receiver.