Troubleshooting

Arch Linux — gobby — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — gobby — vulnerability — 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-202101-26 Related CVEs: CVE-2020-35450 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1:0.5.0+112+gd16519e-1. Fixed in: 1:0.5.0+116+g295e697-1. Group: AVG-1383. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Set Up pgBouncer Connection Pooler on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up pgBouncer Connection Pooler on Debian 10

Introduction How to Set Up pgBouncer Connection Pooler on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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Common Problems 121174

Debian 10: certbot renewal fails because web server port is occupied

🟠 High   ⏱ 5–30 min  Last verified: 13 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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Common Problems 119032

Ubuntu 14.04 LTS Apache returns 503 due to PHP-FPM issues

🟠 High   ⏱ 5–30 min  Last verified: 13 April 2020 Affected versions: 14.04 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 — cde — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — cde — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: x11/cde — Local privilege escalation via CDE dtsession Related CVEs: CVE-2020-2696 Upstream summary: Marco Ivaldi (marco.ivaldi () mediaservice net) reports: A buffer overflow in the CheckMonitor() function in the Common […]

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How to Install and Configure Cassandra on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure Cassandra on Debian 10

Introduction This guide explains how to Install and Configure Cassandra on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the […]

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Common Problems 118986

Ubuntu 14.04 LTS – significant time drift breaks auth and jobs – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 13 April 2020 Affected versions: Ubuntu 14.04 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 — mantis — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mantis — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mantis — multiple vulnerabilities Related CVEs: CAN-2005-4238 CVE-2005-3335 CVE-2008-2276 CVE-2008-3102 CVE-2008-3331 CVE-2008-3332 CVE-2008-3333 CVE-2008-4687  +7 more Upstream summary: mantis reports: Teun Beijers reported a cross-site scripting (XSS) vulnerability in the […]

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How to Optimize AIX for High-Throughput Workloads on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Optimize AIX for High-Throughput Workloads on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to optimize aix for high-throughput workloads on ibm aix 7.2 […]

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FreeBSD 12 — apache-openoffice-devel — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache-openoffice-devel — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 13 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Apache OpenOffice — master password vulnerabilities Related CVEs: CVE-2014-3575 CVE-2015-1774 CVE-2015-4551 CVE-2015-5212 CVE-2015-5213 CVE-2015-5214 CVE-2016-1513 CVE-2017-12607  +11 more Upstream summary: The Apache Openoffice project reports: Apache OpenOffice supports the storage […]

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