Logging Monitoring

Common Problems 116429

Ubuntu 24.04 LTS Intermittent DNS Failures with systemd-resolved

🟡 Medium   ⏱ 5–30 min  Last verified: 10 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 […]

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AlmaLinux 8 — python3x-setuptools — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python3x-setuptools — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:23530 Related CVEs: CVE-2024-11168 CVE-2024-5642 CVE-2024-9287 CVE-2025-0938 CVE-2025-4138 CVE-2025-4330 CVE-2025-4435 CVE-2025-4516  +12 more Upstream summary: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic […]

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Debian 13 — audiolink — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — audiolink — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4942 Upstream summary: audiolink in audiolink 0.05 allows local users to overwrite arbitrary files via a symlink attack on the (1) /tmp/audiolink.db.tmp and (2) /tmp/audiolink.tb.tmp temporary files. Table […]

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Common Problems 111250

Windows Server 2025 — wbadmin incremental backup consuming full disk due to change tracking reset — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 October 2025 Affected versions: Windows Server 2025 📖 ~2 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 20.04 — libblockdev — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libblockdev — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 October 2025 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7577-2 Related CVEs: CVE-2025-6019 Upstream summary: USN-7577-1 fixed a vulnerability in libblockdev. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It […]

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Ubuntu 16.04 — gnuplot — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — gnuplot — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 October 2025 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7773-1 Related CVEs: CVE-2025-31178 CVE-2025-31176 CVE-2025-31181 CVE-2025-31179 CVE-2025-31180 CVE-2025-31177 CVE-2025-3359 CVE-2018-19491  +6 more Upstream summary: ChenYiFan Liu discovered that Gnuplot did not correctly handle certain memory operations. An attacker could […]

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

How to Install Varnish Cache on Debian 13

Introduction Deploying install varnish cache on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 13 Trixie is fully […]

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SLES 12 — icinga2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — icinga2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 October 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:02783-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-48057 CVE-2020-14004 CVE-2020-29663 CVE-2021-37698 Upstream summary: Icinga 2 is a monitoring system which checks the availability of network resources, notifies users of outages, and generates […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 10 October 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2233 CVE-2013-4259 CVE-2014-2686 CVE-2014-3498 CVE-2014-4657 CVE-2014-4658 CVE-2014-4659 CVE-2014-4660  +12 more Upstream summary: Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure […]

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