linux

How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Dovecot IMAP Server on Ubuntu 26.04

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 […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Go 1.24 on Ubuntu 26.04

Go (Golang) 1.24 is a statically typed, compiled language known for its performance, simplicity, and excellent concurrency support. It is widely used for cloud-native tools, microservices, and CLI applications. This guide installs Go 1.24 on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with sudo privileges Internet […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Rust on Ubuntu 26.04

Rust is a systems programming language that guarantees memory safety without a garbage collector through its borrow checker. It is used for WebAssembly, operating systems, game engines, and high-performance network services. This guide installs Rust via rustup on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user account […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Java 24 (OpenJDK) on Ubuntu 26.04

Java 24 is the latest release of the OpenJDK, featuring new Project Panama and Loom capabilities, improved garbage collectors, and preview features. Ubuntu 26.04 LTS ships with OpenJDK in its repositories. This guide installs Java 24 (OpenJDK) and configures it on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Certbot and Manage Let’s Encrypt Certificates on Ubuntu 26.04

Let’s Encrypt provides free, automated, and open TLS certificates. Certbot is the official Let’s Encrypt client that automates certificate issuance and renewal. This guide installs Certbot on Ubuntu 26.04 LTS and manages SSL certificates for Nginx and Apache. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx or Apache installed A […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Configure a Static IP Address with Netplan on Ubuntu 26.04

Netplan is the default network configuration tool on Ubuntu since 18.04. It uses YAML configuration files to describe network interfaces and passes them to either NetworkManager (desktops) or systemd-networkd (servers). This guide configures a static IP address using Netplan on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up a DNS Server with Bind9 on Ubuntu 26.04

BIND9 (Berkeley Internet Name Domain) is the most widely deployed DNS server software. It handles both authoritative DNS (serving zone records for your domains) and recursive DNS (resolving queries for clients). This guide installs BIND9 on Ubuntu 26.04 LTS as a caching/forwarding resolver. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A […]

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How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Postfix Mail Server on Ubuntu 26.04

Postfix is a high-performance, secure, and widely used Mail Transfer Agent (MTA). It handles the SMTP protocol for sending and relaying email. This guide installs and configures Postfix as an internet-facing SMTP server on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with a fully qualified domain name (FQDN) […]

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How to Set Up Software RAID with mdadm on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Prometheus and Grafana on Ubuntu 26.04

Prometheus is an open-source metrics collection and alerting system, while Grafana provides beautiful dashboards for visualising those metrics. Together they form the most popular open-source monitoring stack. This guide installs both on Ubuntu 26.04 LTS with Nginx and SSL. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx installed A user […]

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How to Manage Docker Images and Containers on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Docker Engine on Ubuntu 24.04

Docker Engine allows you to build, run, and manage containerised applications. This guide installs the latest Docker Engine (25.x) on Ubuntu 24.04 LTS using the official Docker repository. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Remove Old Docker Versions Remove any unofficial […]

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