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Docker tutorial - IT technology blog
Advanced Docker Swarm: Rolling Updates, Placement Constraints, and Zero-Downtime Deployments
June 3, 2026
VMware tutorial - IT technology blog
Hot Add CPU and RAM on VMware vSphere: Upgrade Virtual Machine Resources Without Rebooting
June 3, 2026
Docker tutorial - IT technology blog
Docker-in-Docker (DinD) vs Docker-out-of-Docker (DooD): A Practical CI/CD Runner Setup Guide
June 3, 2026
Linux tutorial - IT technology blog
Mastering /proc and /sys: Inspecting Linux Internals Without Third-Party Tools
June 3, 2026
Artificial Intelligence tutorial - IT technology blog
Mastering DeepSeek-R1 on Linux: Optimizing “Home-Grown” Reasoning AI for Peak Performance
June 3, 2026
Docker tutorial - IT technology blog
Dockerize WordPress: Accelerate Your MariaDB and Redis Cache Stack for Production
June 3, 2026
Python tutorial - IT technology blog
Automating File Monitoring with Python Watchdog: Stop Polling and Start Listening
June 3, 2026
Monitoring tutorial - IT technology blog
Grafana Pyroscope: Hunting Down CPU and RAM “Hogs” Directly on Production
June 3, 2026
VMware tutorial - IT technology blog
Mastering VMware Host Profiles: The Ultimate Way to Standardize ESXi Cluster Configurations
June 3, 2026
Ubuntu tutorial - IT technology blog
Varnish + Nginx: The Ultimate Lifesaver for High-Traffic Websites on Ubuntu
June 3, 2026
MySQL tutorial - IT technology blog
Posted inMySQL

Optimizing MySQL 8 with EXPLAIN ANALYZE: Don’t Let the Optimizer Mislead You

Posted by By admin May 9, 2026
Don't let the MySQL Optimizer mislead you with predicted numbers. Learn how to use EXPLAIN ANALYZE to accurately measure every millisecond of execution and optimize queries effectively.
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VMware tutorial - IT technology blog
Posted inVMware

Building Custom VMware ESXi ISOs: The Ultimate Fix for Missing NIC and NVMe Drivers

Posted by By admin May 9, 2026
Learn how to build custom VMware ESXi ISOs to integrate Realtek and Intel I225-V network drivers. The perfect solution for HomeLabs on Mini PCs and NUCs not officially supported by VMware.
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VMware tutorial - IT technology blog
Posted inVMware

vSphere Security: Hands-on Lockdown Mode, Certificates, and ESXi Host Hardening

Posted by By admin May 9, 2026
Practical vSphere security handbook: Learn how to configure Lockdown Mode, perform ESXi hardening via CLI, and manage professional Certificates to protect your virtual infrastructure against malware.
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CentOS tutorial - IT technology blog
Posted inCentos

Centralized Logging with Rsyslog on CentOS Stream 9: Streamline logs for peace of mind

Posted by By admin May 9, 2026
Centralized log management is a vital skill for DevOps. Learn how to configure Rsyslog on CentOS Stream 9 to consolidate logs from dozens of servers into one place, making debugging 5x faster.
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MySQL tutorial - IT technology blog
Posted inMySQL

MySQL SSL/TLS: Don’t Let Your Data Go “Naked” in Transit (mTLS Configuration Guide)

Posted by By admin May 9, 2026
Don't let your MySQL data be intercepted. Here is a detailed guide on configuring SSL/TLS and mTLS for maximum security between your application and database server.
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Security tutorial - IT technology blog
Posted inSecurity

Hardening WordPress for SysAdmins: “Root-Level” Security from Web Server to Source Code

Posted by By admin May 9, 2026
Practical WordPress hardening experience for SysAdmins: blocking Nginx attacks, strict file system permissions, and secure wp-config.php tuning for production servers.
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Security tutorial - IT technology blog
Posted inSecurity

Configuring HTTP Security Headers: ‘Armor’ for Nginx and Apache to Achieve A+ Standard

Posted by By admin May 9, 2026
Installing SSL (HTTPS) is just the beginning. To truly block Clickjacking and XSS, you need a powerful set of HTTP Security Headers. Upgrade your security in 5 minutes.
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Monitoring tutorial - IT technology blog
Posted inMonitoring

Mastering Linux Server Temperature with lm-sensors: Don’t Wait for Your CPU to Overheat

Posted by By admin May 8, 2026
Installing lm-sensors is an essential step to protect your Linux server. This guide helps you monitor CPU temperature and fan speed with just a few simple commands.
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Git tutorial - IT technology blog
Posted inGit

Git Bundle: The Pro Way to Package Repositories for Offline Work

Posted by By admin May 8, 2026
Forget manual .zip compression. Git bundle is the professional way to package an entire repository and its commit history into a single file for offline workflows.
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Database tutorial - IT technology blog
Posted inDatabase

Free Your Hands with SchemaSpy: Automating ERD Diagrams and Database Documentation

Posted by By admin May 8, 2026
Stop drawing ERD diagrams by hand! A guide to using SchemaSpy for automated database scanning, generating HTML reports, and professional relationship diagrams in minutes.
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