GitHub Actions self-hosted runners let you run CI/CD workflows on your own infrastructure, giving you more control over hardware, software, and networking. This guide registers a self-hosted runner on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A GitHub account and repository A user with sudo privileges Step […]
Dovecot is a secure, open-source IMAP and POP3 server. It allows email clients to retrieve messages stored on the server. Combined with Postfix, Dovecot completes a full mail server stack. This guide installs Dovecot on Ubuntu 26.04 LTS with TLS and Maildir storage. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with […]
DKIM (DomainKeys Identified Mail), SPF (Sender Policy Framework), and DMARC (Domain-based Message Authentication, Reporting and Conformance) are three DNS-based email authentication standards that protect your domain from spoofing and significantly improve email deliverability. This guide configures all three on Ubuntu 26.04 LTS with Postfix. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]
Traefik is a modern, cloud-native reverse proxy and load balancer designed for microservices. It auto-discovers services from Docker labels, Kubernetes ingress, and other providers, and automatically provisions Let’s Encrypt TLS certificates. This guide installs Traefik v3 on Ubuntu 26.04 LTS with Docker. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Docker […]
Zabbix 7 is an enterprise-grade open-source monitoring solution that collects metrics from servers, network devices, cloud services, and applications. It supports SNMP, JMX, IPMI, and custom monitoring scripts. This guide installs Zabbix 7 on Ubuntu 26.04 LTS with MySQL and Nginx. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with MySQL 9 […]
Netdata is an open-source, real-time performance monitoring tool that provides per-second metrics for CPUs, RAM, disks, network, processes, and hundreds of applications out of the box. It requires zero configuration to get started. This guide installs Netdata on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]
Samba implements the SMB/CIFS protocol on Linux, enabling file and printer sharing with Windows, macOS, and other Linux machines. It is the standard way to create Linux-based file servers accessible to Windows clients. This guide configures Samba on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]
kubeadm is the official tool for bootstrapping a production-grade Kubernetes cluster. This guide installs Kubernetes 1.30 on Ubuntu 24.04 LTS using kubeadm on a single control-plane node with worker nodes. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS servers (1 control-plane + at least 1 worker) Minimum 2 vCPUs and 2 GB […]
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 […]
A private Docker registry lets you store and distribute custom Docker images within your organisation without sending them to Docker Hub. This guide sets up a private Docker registry with TLS and basic authentication on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Docker Engine and Docker Compose […]
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