Managing user accounts is a fundamental Linux administration task. Ubuntu 26.04 LTS provides the adduser, usermod, and deluser commands to create, modify, and remove accounts safely. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server or desktop A user with sudo privileges Basic familiarity with the Linux terminal Step 1 – Add […]
The LAMP stack — Linux, Apache, MySQL, and PHP — powers millions of web sites. This guide installs and integrates all four components on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges UFW firewall configured Step 1 – Install Apache Install and enable […]
UFW (Uncomplicated Firewall) is the default firewall management tool on Ubuntu. It wraps iptables with a simplified interface, making it easy to allow or deny traffic by port, service name, or IP range. This guide shows you how to set up and manage UFW on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS […]
Nginx server blocks (the equivalent of Apache virtual hosts) let you host multiple websites on a single server. This guide creates a server block for a custom domain on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Nginx installed A domain name pointed to your server’s IP Step […]
SSH key authentication is far more secure than password-based login. A cryptographic key pair — private key on your machine, public key on the server — lets you connect without a password and protects against brute-force attacks. This guide covers generating a key pair and deploying it on Ubuntu 26.04 LTS. Tested and valid on: […]
Apache virtual hosts allow you to host multiple websites on one server. This guide creates a virtual host configuration for a custom domain on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Apache installed A domain name pointed to your server’s IP Step 1 – Create the Document […]
Fail2Ban monitors log files and automatically bans IP addresses that show signs of brute-force activity — too many failed login attempts, repeated bad requests, or other malicious patterns. This guide installs and configures Fail2Ban on Ubuntu 26.04 LTS to protect SSH and other services. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]
After spinning up a fresh Ubuntu 24.04 LTS server, a few essential steps harden the system, create a non-root administrative account, and prepare it for production workloads. This guide walks through every step from first login to a locked-down, up-to-date server. Tested and valid on: Ubuntu 24.04 LTS Prerequisites A fresh Ubuntu 24.04 LTS server […]
Let’s Encrypt provides free, automatically-renewing SSL certificates. Certbot is the recommended ACME client that handles the entire certificate lifecycle. This guide secures an Nginx-hosted domain on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Nginx installed with a server block for your domain Domain DNS A record pointing […]
The hostname identifies your server on a network and appears in shell prompts, log files, and monitoring dashboards. Ubuntu 26.04 LTS uses hostnamectl — a systemd utility — to view and change the hostname persistently without a reboot. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server A user with sudo privileges […]
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