Logging Monitoring

Oracle Linux 8 — nodejs:14 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:14 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-3074)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3074 Related CVEs: CVE-2021-23362 CVE-2021-22918 CVE-2021-27290 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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AlmaLinux 8 — jmc — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — jmc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4329 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 121641

Debian 9 – Apache2 Fails with Address Already in Use – Port Conflict Resolution

🟠 High   ⏱ 5–30 min  Last verified: 9 May 2021 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 Configure Network Inside a WPAR on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Network Inside a WPAR 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 configure network inside a wpar on ibm aix 7.1 […]

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How to Configure collectd on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure collectd 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 configure collectd on ibm aix 7.1 on IBM AIX […]

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How to Use Skopeo for Container Images on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Use Skopeo for Container Images on Oracle Linux 8

Introduction How to Use Skopeo for Container Images on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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FreeBSD 13 — rekonq — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rekonq — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: kdelibs4, rekonq — input validation failure Related CVEs: CVE-2011-3365 CVE-2011-3366 Upstream summary: KDE Security Advisory reports: The default rendering type for a QLabel is QLabel::AutoText, which uses heuristics to determine […]

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FreeBSD 13 — testdisk — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — testdisk — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: testdisk — buffer overflow with malicious disk image Upstream summary: CGSecurity TestDisk Changelog reports: Various fix including security fix, thanks to: Coverity scan (Static Analysis of source code) afl-fuzz (security-oriented […]

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How to Set Up the ELK Stack on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up the ELK Stack on FreeBSD 12

Introduction This guide explains how to Set Up the ELK Stack 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 […]

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FreeBSD 13 — prosody — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — prosody — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Prosody XMPP server advisory 2026-04-29 Related CVEs: CVE-2016-0756 CVE-2016-1231 CVE-2016-1232 CVE-2021-32917 CVE-2021-32918 CVE-2021-32919 CVE-2021-32920 CVE-2021-32921  +6 more Upstream summary: The Prosody team reports: Traffic patterns were discovered which can cause […]

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