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236 posts
A Step-by-Step Guide to Installing Prometheus and Node Exporter
Collect and Store Your Server Metrics The Ubuntu System Administration Guide provides a detailed, step-by-step walkthrough for installing and configuring Prom
How to Configure Dnsmasq for Your Local Network
A Look Inside the Dnsmasq Configuration File The Ubuntu System Administration Guide provides a clear, annotated example of a `dnsmasq.conf` file, making it ea
Enhance Your Privacy: How to Randomize Your MAC Address on Ubuntu
Stay Anonymous on Public Networks Every network device has a unique hardware identifier called a MAC address. While useful, this address can be used to track yo
An Introduction to Podman: The Daemonless Container Engine
A Modern, More Secure Alternative to Docker While Docker is the most well-known container tool, the Ubuntu System Administration Guide introduces Podman, a po
Adding a CNI Plugin: Enabling Pod-to-Pod Communication in Kubernetes
The Missing Piece of Your Kubernetes Network After initializing a cluster with `kubeadm`, you ll notice that some of the core DNS pods remain in a Pending sta
Mastering Remote Access: How to Use SSH Keys with Your Ubuntu Server
Ditch the Password for More Secure Server Access When you manage an Ubuntu server, you ll be using SSH (Secure Shell) to connect and run commands. While you can
Getting Started with MariaDB (MySQL) on Ubuntu Server
Set Up a Powerful and Secure SQL Database The Ubuntu System Administration Guide provides a practical guide to installing and securing MariaDB, a popular and
Running Your First Docker Container: A Minecraft Server in Minutes
From Zero to Server with a Single Command One of the most exciting things about Docker, as shown in the Ubuntu System Administration Guide , is how quickly you
Monitoring at Scale: The Grafana, Prometheus, and Node Exporter Stack
Build a Powerful, Centralized Monitoring Dashboard When you have multiple servers to manage, logging into each one individually is not practical. The Ubuntu Sy
Setting Up a DHCP and DNS Server with Dnsmasq on Ubuntu
Automate Your Network Configuration Once you have a router, you need a way to automatically assign IP addresses to the computers on your private network. The U
Creating an Ubuntu Server VM Entirely from the Command Line
Automate VM Creation with `virt-install` While graphical tools are convenient, true automation comes from the command line. The Ubuntu System Administration Gu
Initializing Your Kubernetes Cluster with `kubeadm init`
Bringing Your Control Plane to Life With your master node prepared, the Ubuntu System Administration Guide walks you through the pivotal `kubeadm init` comman