Logging Monitoring

Arch Linux — python-html5lib — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python-html5lib — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201612-13 Related CVEs: CVE-2016-9910 CVE-2016-9909 Upstream summary: Type: cross-site scripting. Status: Fixed. Affected: 0.9999999-2. Fixed in: 0.999999999-1. Group: AVG-100. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Install and Use Fluentd for Log Aggregation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Use Fluentd for Log Aggregation on RHEL 7

How to Install and Use Fluentd for Log Aggregation on RHEL 7 Log aggregation is a critical discipline in any production environment: raw log files scattered across dozens of servers are nearly impossible to correlate during an incident. Fluentd, distributed as the td-agent package by Treasure Data, is an open-source data collector written in Ruby […]

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FreeBSD 12 — tshark-lite — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — tshark-lite — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: wireshark — multiple security issues Related CVEs: CVE-2010-3445 CVE-2012-0041 CVE-2012-0066 CVE-2012-0067 CVE-2012-0068 CVE-2012-3548 CVE-2012-4048 CVE-2012-4049  +12 more Upstream summary: wireshark developers reports: wnpa-sec-2018-05. IEEE 802.11 dissector crash. (CVE-2018-7335) wnpa-sec-2018-06. Large […]

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Debian 9 — cyrus-imapd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — cyrus-imapd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 April 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-11356 CVE-2019-19783 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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Arch Linux — hostapd — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — hostapd — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201710-23 Related CVEs: CVE-2017-13088 CVE-2017-13087 CVE-2017-13082 CVE-2017-13081 CVE-2017-13080 CVE-2017-13079 CVE-2017-13078 CVE-2017-13077  +3 more Upstream summary: Type: man-in-the-middle. Status: Fixed. Affected: 2.6-5. Fixed in: 2.6-6. Group: AVG-448. Table of contents Symptom […]

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Common Problems 121544

Debian 9 – systemd service remains in activating state after reboot

🟠 High   ⏱ 5–30 min  Last verified: 17 April 2020 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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How to Install Fluentd on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Fluentd on FreeBSD 12

Introduction This guide explains how to Install Fluentd on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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Common Problems 121202

Debian 10 – rsync backup job fails on permissions, ACLs, or xattrs

🟠 High   ⏱ 5–30 min  Last verified: 17 April 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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Alpine Linux edge — sdl2_image — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — sdl2_image — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.0.5-r1 📖 ~4 min read  •  Source: Alpine secdb entry — sdl2_image 2.0.5-r1 Related CVEs: CVE-2019-13616 CVE-2017-12122 CVE-2017-14440 CVE-2017-14441 CVE-2017-14442 CVE-2017-14448 CVE-2017-14449 CVE-2017-14450 Upstream summary: Alpine community repository for vedge ships sdl2_image 2.0.5-r1 which addresses CVE-2019-13616. […]

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