September 2019 - Page 43 of 66

Gentoo Linux — dev-lang/ocaml — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-lang/ocaml — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202007-48 Related CVEs: CVE-2018-9838 Upstream summary: The caml_ba_deserialize function in byterun/bigarray.c in the standard library of OCaml has an integer overflow. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 115949

Ubuntu 26.04 LTS – systemd-resolved returns SERVFAIL for internal DNS zones

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 […]

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How to Monitor Windows Server 2012 R2 with Performance Monitor — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Monitor Windows Server 2012 R2 with Performance Monitor

How to Monitor Windows Server 2012 R2 with Performance Monitor Performance Monitor (PerfMon) is the built-in diagnostic tool in Windows Server 2012 R2 for collecting, analysing, and logging performance data from the operating system, hardware, and applications. It provides real-time graphing of hundreds of performance counters covering CPU, memory, disk, network, and application-specific metrics. When […]

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

Arch Linux — lxterminal — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201706-25 Related CVEs: CVE-2016-10369 Upstream summary: Type: access restriction bypass. Status: Fixed. Affected: 0.3.0-1. Fixed in: 0.3.0-2. Group: AVG-264. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 114914

RHEL 8 systemctl Service Fails to Start After Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 19 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 — ircd-ratbox-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ircd-ratbox-devel — multiple vulnerabilities (2 CVEs) — 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: irc-ratbox — multiple vulnerabilities Related CVEs: CVE-2009-4016 CVE-2010-0300 Upstream summary: SecurityFocus reports: The first affects the /quote HELP module and allows a user to trigger an IRCD crash on some […]

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How to Harden SSH on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Harden SSH on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to harden ssh on ibm aix 7.1 on IBM AIX […]

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How to Set Up Always On VPN on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up Always On VPN on Windows Server 2016

How to Set Up Always On VPN with Windows Server 2016 Always On VPN is a remote access solution introduced with Windows 10 and Windows Server 2016 that replaces the older DirectAccess technology. Unlike traditional VPN solutions where users must manually initiate a connection, Always On VPN automatically establishes a VPN tunnel whenever a Windows […]

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FreeBSD 12 — py37-requests — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py37-requests — security advisory — 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: www/py-requests — Information disclosure vulnerability Upstream summary: The Requests package before 2.20.0 for Python sends an HTTP Authorization header to an http URI upon receiving a same-hostname https-to-http redirect, which […]

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