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FreeBSD 13 — png — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — png — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: png — CWE-122: Heap-based Buffer Overflow Related CVEs: CVE-2004-0421 CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 CVE-2007-2445 CVE-2007-5266 CVE-2007-5267 CVE-2007-5268  +12 more Upstream summary: https://github.com/pnggroup/libpng/security/advisories/GHSA-g8hp-mq4h-rqm3 reports: LIBPNG is a reference library for use in […]

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How To Scale Node.js Applications with Clustering — step-by-step Javascript tutorial on Progressive Robot

How To Scale Node.js Applications with Clustering

In this tutorial, you will scale a Node.js application using the cluster module on a machine with four or more CPUs. You’ll create an application that does not use clustering, then modify the app to use clustering. You’ll also use the pm2 module to scale the application across multiple CPUs. You’ll use a load testing tool to compare the performance of the app that uses clustering and the one that doesn’t, as well as assess the pm2 module.

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

Oracle Linux 8 — libreoffice security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-1766)

🟡 Medium   ⏱ 10–30 min  Last verified: 19 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1766 Related CVEs: CVE-2021-25633 CVE-2021-25634 CVE-2021-25635 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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Common Problems 119157

Ubuntu 14.04 LTS Kernel Panic Triggered by Outdated Third-Party Module

🔴 Critical   ⏱ 5–30 min  Last verified: 19 July 2021 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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Common Problems 118499

Ubuntu 16.04 LTS Docker Daemon Fails on overlay2 Metadata

🟠 High   ⏱ 5–30 min  Last verified: 19 July 2021 Affected versions: 16.04 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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How to Tune AIX for Low-Latency Applications on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Tune AIX for Low-Latency Applications 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 tune aix for low-latency applications on ibm aix 7.1 […]

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How to Configure Traefik Reverse Proxy on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Traefik Reverse Proxy on FreeBSD 12

Introduction This guide explains how to Configure Traefik Reverse Proxy 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 […]

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