🟡 Medium ⏱ 5–30 min Last verified: 5 July 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 […]
🟡 Medium ⏱ 10–30 min Last verified: 5 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read • Source: Ubuntu Security Notice USN-8169-1 Related CVEs: CVE-2025-49844 CVE-2022-24834 CVE-2024-31449 CVE-2025-32023 CVE-2024-31228 CVE-2024-46981 CVE-2024-51741 Upstream summary: It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use […]
🟡 Medium ⏱ 10–30 min Last verified: 5 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7409-1 Related CVEs: CVE-2025-25291 CVE-2025-25292 CVE-2025-25293 CVE-2016-5697 CVE-2017-11428 CVE-2024-45409 Upstream summary: It was discovered that ruby-saml did not correctly handle XML parsing. An attacker could possibly use this issue to […]
ClamAV is a free open-source antivirus engine for detecting trojans, viruses, malware, and other malicious threats. While Linux servers are less susceptible to viruses than Windows, ClamAV is essential for scanning files from mixed environments. This guide installs ClamAV on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server […]
Regular database backups are essential. This guide covers multiple methods for backing up and restoring MySQL 8.0 databases on Ubuntu 24.04 LTS — from simple mysqldump exports to automated cron jobs. 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 – […]
🟡 Medium ⏱ 10–30 min Last verified: 3 July 2025 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read • Source: Ubuntu Security Notice USN-8248-2 Related CVEs: CVE-2021-33450 CVE-2021-33452 https://launchpad.net/bugs/2151861 CVE-2023-31722 Upstream summary: USN-8248-1 fixed vulnerabilities in NASM. Unfortunately the update introduced a regression which could cause NASM to crash. This update fixes the […]
🔴 Critical ⏱ 5–30 min Last verified: 2 July 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 […]
🟠 High ⏱ 5–30 min Last verified: 2 July 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 […]
Postfix is a popular, high-performance Mail Transfer Agent (MTA) that routes and delivers email. This guide installs and configures Postfix as an outgoing SMTP server on Ubuntu 24.04 LTS. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A registered domain name DNS MX records pointing to your server A user with […]
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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