Hidden Linux Performance Hack: RAM-Based Caching via /dev/shm
On most modern servers, RAM is abundant but underused. While CPUs and disks get all the optimization attention, RAM often sits idle, especially in web
May 15, 2025
Linux & Systems
Linux commands, server configuration, backups, scripting, and practical projects.
Introduction to Containers and Docker on Linux: Basics and Setup
Containers are transforming how we manage applications and environments, especially on Linux systems like Debian and Ubuntu. This guide will explain the essentials, from what
November 1, 2024
Configuring the Linux Kernel: Basics and Considerations
The Linux kernel is the heart of every Linux-based operating system. It bridges software with the system’s hardware. Whether you’re trying to squeeze the best
October 24, 2024
Backup and Recovery Strategies: A Practical Overview for Data Protection
One of your most critical responsibilities for Linux Admins is ensuring the availability and integrity of your organization’s data. It’s not a glamorous job, but
October 24, 2024
Networking Basics in Linux: Network Settings and Multiple IPs
Setting up multiple IP addresses on a single network interface, allowing for more flexible and efficient management of services and resources is a common task
October 22, 2024
Process Management: Monitoring and Controlling Processes in Linux
As a Linux System Administrator, process management is one of the most crucial skills to master. Efficiently monitoring and controlling processes ensures the system runs
October 19, 2024
Galera Cluster: A Practical Guide to Setup on Debian/Ubuntu, Example With Two Nodes
Galera Cluster is a high-availability solution for MySQL databases, offering synchronous replication across multiple database nodes. Designed for MySQL, MariaDB, and Percona XtraDB Cluster, Galera
October 18, 2024
Use rsync on Debian for Backups and Restore Checks
Last reviewed: October 2026. Commands below use rsync’s upstream option definitions. The small local dry-run, copy and restore example was checked with rsync 3.2.3 on
October 16, 2024
Shell Scripting Basics: Automation To Streamline Linux Administration Tasks
Linux administration is tightly linked to efficiency and precision. One of the best ways to achieve this is through shell scripting. Whether you’re managing hundreds
October 16, 2024
Using AppArmor on Debian: Enhancing Security on Linux Systems
Securing your system is no longer optional—it’s essential. As a Linux System Administrator, you are tasked with ensuring the security and stability of your systems,
October 15, 2024