Linux – Page 9 – ITFROMZERO – Share tobe shared!

Detecting and Responding to a Hacked Server: A Practical Step-by-Step Guide

By admin February 28, 2026

A step-by-step guide to detecting and responding to a compromised Linux server: from manual command-line inspection and rootkit scanning with rkhunter/chkrootkit, to server isolation and setting up Fail2ban for long-term defense. Includes real commands and hands-on experience.

Security

Complete Guide to Installing and Configuring OpenVPN on Ubuntu Server from A to Z

By admin February 28, 2026

A complete guide to installing and configuring OpenVPN on Ubuntu Server, covering everything from CA creation and client certificate signing to split tunneling configuration and security hardening tips drawn from real-world server audits.

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.