Linux

How to Install Alertmanager on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Alertmanager on Debian 13

Introduction This guide explains how to Install Alertmanager on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with the standard repositories […]

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Common Problems 116410

Ubuntu 24.04 LTS – release upgrade check fails with third-party repositories – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 17 October 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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Ubuntu 16.04 — lua5.1 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — lua5.1 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 October 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8262-1 Related CVEs: CVE-2025-49844 Upstream summary: It was discovered that the Lua parser incorrectly handled garbage collection when processing specially crafted Lua scripts. A remote attacker could possibly use this […]

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Oracle Linux 8 — webkit2gtk3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — webkit2gtk3 — vulnerability — patch and remediation guide (ELSA-2025-22789)

🟠 High   ⏱ 15–60 min  Last verified: 17 October 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-22789 Related CVEs: CVE-2023-43000 CVE-2025-13502 CVE-2025-13947 CVE-2025-43392 CVE-2025-43419 CVE-2025-43421 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 10 — php — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — php — vulnerability — patch and remediation guide (ELSA-2026-1628)

🟠 High   ⏱ 15–60 min  Last verified: 17 October 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-1628 Related CVEs: CVE-2025-14177 CVE-2025-14178 CVE-2025-14180 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Debian 13 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5086 CVE-2009-0036 CVE-2010-2237 CVE-2010-2238 CVE-2010-2239 CVE-2010-2242 CVE-2011-1146 CVE-2011-1486  +12 more Upstream summary: Multiple methods in libvirt 0.3.2 through 0.5.1 do not check if a connection is read-only, which […]

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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 MongoDB 7.0 on Ubuntu 24.04

MongoDB 7.0 is a leading NoSQL document database that stores data as flexible JSON-like documents. This guide installs it on Ubuntu 24.04 LTS from the official MongoDB repository. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Step 1 – Import the MongoDB GPG Key Add the […]

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Gentoo Linux — dev-util/librnp — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-util/librnp — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202511-07 Related CVEs: CVE-2025-13470 Upstream summary: The affected librnp version generated weak session keys for its public key encryption (PKESK) mode. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Configure mod_rewrite Rules in Apache2 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure mod_rewrite Rules in Apache2 on Debian 13

Introduction How to Configure mod_rewrite Rules in Apache2 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 […]

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Oracle Linux 10 — gstreamer1-plugins-bad-free, gstreamer1-plugins-base, gstreamer1-plugins-good, and gstreamer1-plugins-ugly-free — vulnerability — patch a… — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — gstreamer1-plugins-bad-free, gstreamer1-plugins-base, gstreamer1-plugins-good, and gstreamer1-plugins-ugly-free — vulnerab… (ELSA-2026-6259)

🟠 High   ⏱ 15–60 min  Last verified: 16 October 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-6259 Related CVEs: CVE-2026-2920 CVE-2026-2921 CVE-2026-2922 CVE-2026-2923 CVE-2026-3082 CVE-2026-3083 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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