Accurate system time is critical for SSL certificates, logs, cron jobs, and distributed systems. Ubuntu 24.04 LTS uses systemd-timesyncd as the default NTP client. This guide shows you how to configure and verify time synchronisation. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Internet connectivity Step […]
Redis 7.2 is an in-memory data store used as a cache, session store, and message broker. Ubuntu 24.04 LTS provides Redis in its repositories. This guide installs and secures it. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Install Redis Install from the […]
NFS (Network File System) allows Linux servers to share directories over the network. Client machines mount NFS shares and access files as if they were local. This guide configures an NFS server and client on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Two Ubuntu 24.04 LTS servers (server and client) on […]
AppArmor is a Linux Security Module (LSM) built into the Ubuntu kernel that restricts what programs can do. Ubuntu 24.04 LTS ships with AppArmor enabled by default and includes profiles for many common applications. This guide explains how to view, enable, and create AppArmor profiles. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 […]
Lynis is a battle-tested security auditing tool for Linux systems. It performs in-depth inspections of your server configuration and provides prioritised hardening recommendations. This guide installs and runs Lynis on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Install Lynis […]
Docker Compose is a tool for defining and running multi-container Docker applications with a single YAML file. Docker Compose v2 is now bundled with Docker Engine as a plugin. This guide installs and demonstrates it on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Docker Engine installed A […]
LVM (Logical Volume Manager) provides flexible disk management by abstracting physical storage into logical volumes that can be resized, snapshotted, and moved. This guide explains how to create and manage LVM volumes on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server One or more additional block devices (e.g. […]
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 […]
k3s is a lightweight, certified Kubernetes distribution from Rancher that is perfect for edge computing, IoT, CI/CD, and small deployments. It installs in seconds and requires only 512 MB RAM. This guide installs k3s on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges […]
Understanding how to manage Docker images and containers is fundamental to working with Docker. This guide covers the essential commands for pulling, building, running, inspecting, and cleaning up Docker images and containers on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Docker Engine installed A user in the […]
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