Logging Monitoring

Common Problems 116619

Ubuntu 24.04 LTS PAM faillock Policy Locks Users Out Too Aggressively

🟡 Medium   ⏱ 5–30 min  Last verified: 5 January 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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NetBSD 10.0 — ruby-haml — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ruby-haml — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-1002201 Upstream summary: pkgsrc audit-packages flagged ruby{22,24,25,26}-haml<5.0.0 for vulnerability class 'arbitrary-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-1002201 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Configure a Virtual Host in Nginx on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure a Virtual Host in Nginx on CentOS Stream 10

Introduction This tutorial demonstrates how to Configure a Virtual Host in Nginx on CentOS Stream 10 on CentOS Stream 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 10 system […]

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How to Use tmux for Terminal Multiplexing on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Use tmux for Terminal Multiplexing on RHEL 9

Terminal multiplexing solves one of the most common problems in server administration: when your SSH connection drops mid-task, any running process in that session is killed. With tmux, your terminal sessions run inside a server-side process that persists independently of your SSH connection. You can detach from a session, disconnect, reconnect hours later from a […]

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FreeBSD 14 — py31-django-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — py31-django-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 January 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: django — multiple vulnerabilities Related CVEs: CVE-2009-3695 CVE-2010-3082 Upstream summary: The Django project reports: Please reference CVE/URL list for details Table of contents Symptom & Impact Environment & Reproduction Root […]

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Common Problems 116505

Ubuntu 24.04 LTS – NVIDIA driver mismatch causes black screen – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 January 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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Alpine Linux edge — py3-idna — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — py3-idna — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.7-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-idna 3.7-r0 Related CVEs: CVE-2024-3651 Upstream summary: Alpine main repository for vedge ships py3-idna 3.7-r0 which addresses CVE-2024-3651. Table of contents Symptom & Impact Environment […]

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FreeBSD 14 — py38-kerberos — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — py38-kerberos — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 January 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-kerberos — DoS and MitM vulnerabilities Related CVEs: CVE-2015-3206 Upstream summary: macosforgebot reports: The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows […]

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FreeBSD 14 — darkhttpd — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — darkhttpd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 January 2025 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: darkhttpd — DOS vulnerability Related CVEs: CVE-2020-25691 Upstream summary: Mitre reports: flaw was found in darkhttpd. Invalid error handling allows remote attackers to cause denial-of-service by accessing a file with […]

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Amazon Linux 2 — indent — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — indent — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2358 Related CVEs: CVE-2023-40305 CVE-2024-0911 Upstream summary: GNU indent 2.2.13 has a heap-based buffer overflow in search_brace in indent.c via a crafted file. (CVE-2023-40305) Table of contents Symptom & Impact […]

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