Troubleshooting

Common Problems 112494

Windows Server 2019 — Primary group SID anomaly stops member from inheriting Domain Users rights — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 May 2020 Affected versions: Windows Server 2019 📖 ~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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FreeBSD 12 — py32-salt — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py32-salt — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: salt — multiple vulnerabilities in salt-master process Related CVEs: CVE-2016-1866 CVE-2016-3176 CVE-2017-12791 CVE-2017-14695 CVE-2017-14696 CVE-2018-15750 CVE-2018-15751 CVE-2019-17361  +2 more Upstream summary: F-Secure reports: CVE-2020-11651 – Authentication bypass vulnerabilities The ClearFuncs […]

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Gentoo Linux — net-misc/openslp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-misc/openslp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202005-12 Related CVEs: CVE-2017-17833 CVE-2019-5544 Upstream summary: Multiple vulnerabilities have been discovered in OpenSLP. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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How to Set Up HTTPS Redirect in Apache2 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up HTTPS Redirect in Apache2 on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up set up https redirect in apache2 on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step […]

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FreeBSD 12 — mini_httpd — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mini_httpd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mini_httpd — disclose arbitrary files is some circumstances Related CVEs: CVE-2015-1548 Upstream summary: Jef Poskanzer reports: Prior versions allowed remote users to read arbitrary files in some circumstances. Table of […]

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openSUSE Tumbleweed — adns — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — adns — multiple vulnerabilities (5 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-2020:0827-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-9103 CVE-2017-9106 CVE-2017-9107 CVE-2017-9108 CVE-2008-1447 Upstream summary: An issue was discovered in adns before 1.5.2. pap_mailbox822 does not properly check st from adns__findlabel_next. Without this, […]

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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2020-2614)

🟠 High   ⏱ 15–60 min  Last verified: 3 May 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2614 Related CVEs: CVE-2020-12398 CVE-2020-12405 CVE-2020-12410 CVE-2020-12406 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Common Problems 121046

Debian 10 Failed to Fetch Due to Proxy Misconfiguration

🟡 Medium   ⏱ 5–30 min  Last verified: 2 May 2020 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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Common Problems 118565

MySQL Fails to Start After Unclean Shutdown

🟡 Medium   ⏱ 5–30 min  Last verified: 2 May 2020 📖 ~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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Common Problems 115001

RHEL 8 sshd Resetting Connections Under High Burst Logins

🟡 Medium   ⏱ 5–30 min  Last verified: 2 May 2020 📖 ~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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