Linux – Page 3 – ITFROMZERO – Share tobe shared!

Securing Your SSH Server: Essential Steps to Prevent Getting Hacked

By admin March 4, 2026

A hands-on guide to SSH server security: comparing 4 common approaches, analyzing their trade-offs, and concrete configuration steps from SSH keys to Fail2ban. Prioritize in the right order to protect your server as effectively as possible.

Linux

Automating Backups with Cron Jobs on Linux: Real Scripts from Production

By admin March 3, 2026

A guide to setting up automated backups on Linux with cron jobs: complete scripts for MySQL, config files, and user uploads, with integrity verification and failure alerts. Real-world experience from managing multiple production VPS instances.

Linux

Managing Processes with systemd on Linux: Practical Tips from the Trenches

By admin March 3, 2026

systemd is the default process manager on modern Linux. This article shares essential commands, how to create custom services, debug failures, and best practices from real-world server operations.

Linux

Install and Configure Nginx on Ubuntu 22.04: A Complete Web Server Guide from A to Z

By admin March 2, 2026

A step-by-step guide to installing and configuring Nginx on Ubuntu 22.04 with a quick-start structure — from the first command to virtual hosts, reverse proxy, and HTTPS. Includes practical tips on performance tuning, rate limiting, and zero-downtime reloads in production.

Linux

Installing and Configuring NTP Server on Linux: Fixing Time Sync Issues in Production

By admin March 2, 2026

A guide to installing chrony and configuring internal NTP server/client on Linux, drawn from real production operations experience. Covers cluster configuration, firewall setup, offset verification, and a basic monitoring script.

Linux

Managing Users and Permissions on Linux: Practical Tips for Beginners

By admin March 1, 2026

A comparison of useradd vs adduser, octal vs symbolic chmod, and how to configure sudo safely on Linux. Practical insights from 3 years of VPS management — helping beginners avoid the most painful user and permission mistakes.

Linux

How to Use tmux: Managing Multiple Terminals and Keeping Sessions Alive When SSH Drops

By admin February 28, 2026

tmux is a terminal multiplexer that lets you manage multiple terminals within a single SSH window and keep sessions alive even after losing your connection. This guide covers installation, essential shortcuts, and practical workflows for developers working with Linux servers.