Ubuntu 24.04

Ubuntu 24.04 — ceph — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — ceph — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 January 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8045-1 Related CVEs: CVE-2024-31884 CVE-2024-47866 CVE-2024-48916 Upstream summary: Martin Schobert discovered that Ceph did not properly verify SSL certificates when using Pybind for secure mail connections, which could result in […]

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How to Secure MySQL 8.0 on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install phpMyAdmin on Ubuntu 24.04

phpMyAdmin is a free web-based interface for managing MySQL/MariaDB databases. This guide installs phpMyAdmin on Ubuntu 24.04 LTS with Nginx and PHP 8.3. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Nginx, MySQL, PHP 8.3-FPM installed A user with sudo privileges Step 1 – Install phpMyAdmin Install from the Ubuntu repository: […]

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Common Problems 116637

Ubuntu 24.04 LTS – cloud-init hangs and delays first boot – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 January 2025 Affected versions: Ubuntu 24.04 LTS 📖 ~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 […]

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Common Problems 116533

Ubuntu 24.04 LTS – custom nftables rules disappear after reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 1 January 2025 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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How to Secure MySQL 8.0 on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Secure MySQL 8.0 on Ubuntu 24.04

A default MySQL 8.0 installation has several security weaknesses that should be addressed before going to production. This guide walks through MySQL hardening best practices on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server with MySQL 8.0 installed A user with sudo privileges Step 1 – Run mysql_secure_installation […]

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Ubuntu 24.04 — plantuml — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — plantuml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2024 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7353-1 Related CVEs: CVE-2022-1231 Upstream summary: Tobias S. Fink discovered that PlantUML was susceptible to cross-site scripting attacks (XSS) in instances where SVG images were rendered. An attacker could possibly […]

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Common Problems 116399

Ubuntu 24.04 LTS Release Upgrade Stuck at Calculating Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 30 December 2024 📖 ~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 […]

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How to Configure a Static IP Address with Netplan on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Set Up a DNS Server with Bind9 on Ubuntu 24.04

BIND9 is the most widely deployed DNS server software. This guide configures BIND9 as an authoritative DNS server and a local recursive resolver 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 registered domain name (for authoritative DNS) Step 1 – Install […]

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How to Install and Configure Xdebug 3 for PHP 8.3 on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Composer on Ubuntu 24.04

Composer is the dependency manager for PHP. It allows you to declare project libraries, resolve version conflicts, and install them automatically. This guide installs Composer globally on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server PHP 8.3 installed A user with sudo privileges Step 1 – Install Required […]

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Common Problems 116631

Repository Does Not Have a Release File on Ubuntu 24.04 LTS

🟡 Medium   ⏱ 5–30 min  Last verified: 29 December 2024 Affected versions: 24.04 📖 ~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 […]

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