Linux

Introduction to Linger In Ubuntu (and other Linux systems using systemd), linger allows non-root users to run persistent services that: Without linger, user-specific services terminate when the user logs out. Linger is ideal for long-running processes like web servers, databases, or bots under a user account. Why Use Linger? Enabling Linger for a User Use loginctl to enable linger. Replace username with the target user: Example: Disabling Linger To revoke persistent sessions: Example: Verifying Linger Status Check if linger is active for a user: Alternative Check: Enabled…

Yet-Another-Bench-Script (YABS): A Minimalist Benchmarking Tool for Server Performance For server administrators or developers seeking a straightforward way to evaluate hardware performance, Yet-Another-Bench-Script (YABS) offers a lightweight, open-source solution. This Bash-based script combines multiple benchmarking utilities to test CPU, disk I/O, and network speeds, delivering results in minutes without complex setup. What Is YABS?YABS is a script designed to automate server performance testing. It integrates tools like Geekbench (for CPU benchmarks), fio (for disk I/O analysis), and iperf3 (for network…

Managing multiple Linux devices via SSH can become cumbersome when dealing with scattered IP addresses and individual configurations. ShellHub simplifies this process by providing a centralized SSH gateway, allowing you to access all your devices through a single interface. Here’s how to set it up: Why Use ShellHub? Step 1: Deploy the ShellHub Server Install Docker Ensure Docker is installed on your server (Ubuntu/Debian recommended): Run the ShellHub Server Deploy the ShellHub container. Replace YOUR_TENANT_ID with a unique identifier (e.g., your organization’s…

If you’ve ever felt your Linux system slowing down or becoming unresponsive, don’t rush to blame your hardware! Before upgrading your RAM or SSD, try Tuned — a Linux tool that optimizes system performance with minimal configuration. Here’s how it works! What is Tuned? Tuned is a background service (daemon) that dynamically adjusts Linux kernel settings, CPU behavior, disk I/O, and other parameters based on predefined profiles. It’s perfect for users who want to boost speed or save power without diving…