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How to Install and Configure OpenVPN Server on Linux: Easy Secure Remote Network Access

By admin March 29, 2026

This article provides a detailed guide on how to install and configure an OpenVPN Server on Linux to create a secure VPN connection. You'll learn about different VPN solutions, why OpenVPN is chosen, and how to deploy it step-by-step easily using an automated script.

Linux

Effective Linux Debugging: A Detailed Guide with journalctl and dmesg

By admin March 24, 2026

Debugging on Linux is an essential skill. journalctl and dmesg are two powerful tools that help you identify the root cause of any issue, from services to hardware. This article guides you on how to use them effectively.

Network

Setting Up a PXE Boot Server on Linux: Automated OS Installation Over the Network for Multiple Servers

By admin March 23, 2026

A hands-on guide to deploying a PXE Boot Server on Linux with dnsmasq, TFTP, and NFS for automated OS installation across multiple servers over the network. Covers detailed configuration, boot menus, BIOS/UEFI differences, and a quick health check script for the full stack.

Linux

Guide to managing Logical Volumes (LVM) on Linux: Create, extend, and shrink partitions flexibly

By admin March 22, 2026

LVM (Logical Volume Manager) is a flexible disk space management solution on Linux, allowing easy creation, extension, and shrinking of partitions. This article provides detailed instructions for LVM operations from basic to advanced, along with practical examples and personal experiences.

Ubuntu

Setting Up and Configuring Postfix as a Mail Server on Ubuntu 22.04: A Detailed Guide

By admin March 17, 2026

Don't want your server "silent" in the middle of the night? This article guides you on how to set up Postfix as a mail server on Ubuntu 22.04 so you'll never again face a system error situation where no one receives email notifications.

VMware

Efficient Physical to Virtual (P2V) Server Migration with VMware vCenter Converter Standalone

By admin March 14, 2026

P2V is an IT infrastructure optimization solution. This article provides a step-by-step guide to converting physical machines to virtual machines using VMware vCenter Converter Standalone, along with practical experience. Ensure success!

MySQL

MySQL Server Security: Essential Steps to Protect Production Data

By admin March 13, 2026

MySQL server security is vital for protecting production data. This article compares security methods, from basic configuration to SSL/TLS implementation and firewalls. It provides detailed steps to ensure the safety of your database.

Security

Linux Security Audit Logs: Experiences from an IT Engineer

By admin March 11, 2026

As an IT engineer, I know the importance of auditing Linux security logs. My server once suffered an SSH brute-force attack in the middle of the night—since then, I prioritize log auditing to detect threats early and protect the system.

Linux

Log Rotation on Linux with Logrotate: Rescuing Your Disk Drive in the Middle of the Night

By admin March 10, 2026

As an IT engineer, I've experienced servers crashing at 2 AM due to full log files. This article consolidates hard-earned experience on using Logrotate on Linux, an indispensable tool for automatically managing, rotating, and compressing log files to keep your system stable and efficient.