Composer is the de-facto dependency manager for PHP. It resolves and downloads packages from Packagist, handles autoloading, and manages project-specific dependencies through a composer.json file. This guide installs Composer globally on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with PHP 8.4 installed A user with sudo privileges Internet […]
Ansible is an agentless IT automation tool that uses SSH and YAML playbooks to configure servers, deploy applications, and orchestrate complex workflows. It requires no agents on managed nodes — just SSH access and Python. This guide installs Ansible on Ubuntu 26.04 LTS and runs a first playbook. Tested and valid on: Ubuntu 26.04 LTS […]
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: […]
Swap space extends the effective memory of a Linux server by using disk space as overflow memory. While not a substitute for RAM, it prevents out-of-memory crashes on servers that occasionally spike in memory usage. This guide creates and configures a swap file on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites […]
Symfony 7 is a robust PHP framework following an LTS release cycle. Known for its reusable components and strict standards, Symfony powers enterprise applications worldwide. This guide installs a Symfony 7 application on Ubuntu 26.04 LTS with Nginx and PHP-FPM. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Nginx and PHP […]
Xdebug is an indispensable PHP debugging and profiling extension. Xdebug 3 works with PHP 8.4 and integrates seamlessly with VS Code, PhpStorm, and other IDEs for step-through debugging, stack traces, and code coverage. This guide installs and configures Xdebug 3 on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS […]
Lynis is an open-source security auditing tool for Linux systems. It performs in-depth security scans of the system configuration, checks for vulnerabilities, and provides detailed hardening recommendations with a scored report. This guide runs a Lynis audit on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]
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 […]
Two-factor authentication (2FA) for SSH adds an extra layer of security by requiring both your SSH key and a time-based one-time password (TOTP) from an authenticator app. This guide configures 2FA for SSH using Google Authenticator PAM on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS SSH access with […]
Terraform is HashiCorp’s infrastructure-as-code tool that lets you define cloud and on-premises resources in human-readable configuration files that you can version, reuse, and share. This guide installs Terraform on Ubuntu 26.04 LTS and runs a first configuration. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with sudo privileges Cloud provider […]
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