Symfony 7 is a high-performance PHP framework built for flexibility and scalability. This guide installs the Symfony CLI and creates a new Symfony 7 web application on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server PHP 8.3 installed Composer installed A user with sudo privileges Step 1 – […]
🟡 Medium ⏱ 5–30 min Last verified: 12 October 2025 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]
🟠 High ⏱ 5–30 min Last verified: 11 October 2025 Affected versions: Oracle Linux 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
MySQL 8.0 is the world’s most popular open-source relational database. Ubuntu 24.04 LTS ships with MySQL 8.0 in its default repositories. This guide installs, secures, and verifies MySQL 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 – Update Package Lists […]
🔴 Critical ⏱ 5–30 min Last verified: 9 October 2025 Affected versions: Debian 13 (Trixie) 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
OpenLiteSpeed is the open-source version of LiteSpeed Web Server — a high-performance, event-driven server with a built-in WebAdmin GUI. It handles PHP natively via LiteSpeed SAPI, which is significantly faster than PHP-FPM. This guide installs it on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with […]
🔴 Critical ⏱ 5–30 min Last verified: 5 October 2025 Affected versions: Oracle Linux 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
Introduction How to Install MariaDB 11 on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. This […]
Docker Compose simplifies deploying multi-service applications. This guide walks through creating a production-ready Docker Compose deployment for a LEMP stack (Nginx, MySQL, PHP) on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Docker Engine and Docker Compose plugin installed A user in the docker group Step 1 – […]
Red Hat Enterprise Linux 9 uses firewalld as its default firewall management daemon, backed by nftables as the kernel netfilter framework (replacing iptables which was the default in RHEL 7 and earlier). firewalld provides a zone-based model where each network interface is assigned to a trust zone — public, internal, dmz, trusted, and more — […]
