May 2020

Alpine Linux edge — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — ark — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 20.08.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — ark 20.08.0-r1 Related CVEs: CVE-2020-24654 CVE-2020-16116 Upstream summary: Alpine community repository for vedge ships ark 20.08.0-r1 which addresses CVE-2020-24654. Table of contents Symptom & Impact […]

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Common Problems 121598

Apache Returns 503 Because PHP-FPM Socket Missing

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 9 📖 ~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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openSUSE Tumbleweed — libldap — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libldap — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2016:0226-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-6908 CVE-2020-8027 CVE-2015-1545 CVE-2015-1546 CVE-2017-17740 CVE-2019-13057 CVE-2019-13565 Upstream summary: The ber_get_next function in libraries/liblber/io.c in OpenLDAP 2.4.42 and earlier allows remote attackers to cause a […]

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Common Problems 121030

Debian 10 – nftables Rules Missing After Reboot – Persistent Firewall Setup

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 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 & […]

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How to Install CockroachDB on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Install CockroachDB on SLES 12

Introduction This tutorial covers How to Install CockroachDB on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh && […]

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Common Problems 118047

Ubuntu 18.04 Docker Containers Lose DNS After Restart

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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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FreeBSD 12 — devcpu-data — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — devcpu-data — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Intel CPU issues Related CVEs: CVE-2020-0543 Upstream summary: Intel reports: Intel CPUs suffer Special Register Buffer Data Sampling vulnerability Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 117467

Ubuntu 20.04 LTS – UFW blocks required application ports after policy tighten – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 20.04 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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FreeBSD 12 — shoutcast — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — shoutcast — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: shoutcast — cross-site scripting, information exposure Related CVEs: CVE-2006-3007 Upstream summary: Goober's advisory reports reports that shoutcast is vulnerable to an arbitrary file reading vulnerability: Impact of the vulnerability depends […]

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