Troubleshooting

Oracle Linux 8 — curl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — curl — vulnerability — patch and remediation guide (ELSA-2020-1792)

🟡 Medium   ⏱ 10–30 min  Last verified: 13 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1792 Related CVEs: CVE-2019-5436 CVE-2019-5482 CVE-2019-5481 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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Oracle Linux 8 — Scriptlet-Related Error for microcode_ctl Might Be Displayed During Upgrade — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Scriptlet-Related Error for microcode_ctl Might Be Displayed During Upgrade

🟠 High   ⏱ 5–30 min  Last verified: 12 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 31292199 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 […]

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Common Problems 113495

Windows Server 2012 R2 — RRAS NAT translation table saturation causes outbound traffic drops during peak usage — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 12 October 2020 Affected versions: Windows Server 2012 R2 📖 ~2 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 […]

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How to Configure NIM Master Server on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure NIM Master Server 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 nim master server on ibm aix 7.1 on […]

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Ubuntu 16.04 — highlight.js — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — highlight.js — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 October 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8276-1 Related CVEs: CVE-2020-26237 Upstream summary: It was discovered that Highlight.js used plain JavaScript objects for internal language name lookups, making them susceptible to prototype pollution attacks. An attacker could […]

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How to Configure Nginx as a Reverse Proxy on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy on Oracle Linux 8

Introduction Setting up configure nginx as a reverse proxy on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Nginx as a Reverse Proxy on Oracle Linux 8, with all the commands you need, the SELinux […]

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How to Set Up ArgoCD for GitOps on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up ArgoCD for GitOps on RHEL 7

How to Set Up ArgoCD for GitOps on RHEL 7 GitOps is an operational model in which the desired state of your infrastructure and applications is stored declaratively in a Git repository, and an automated agent continuously reconciles that desired state with the actual running state in your Kubernetes cluster. ArgoCD is the leading open-source […]

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Oracle Linux 8 — sqlite — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — sqlite — vulnerability — patch and remediation guide (ELSA-2020-0273)

🟠 High   ⏱ 15–60 min  Last verified: 12 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0273 Related CVEs: CVE-2019-13734 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — .NET Core 3.1 security and bugfix update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core 3.1 security and bugfix update (ELSA-2022-6912)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 October 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6912 Related CVEs: CVE-2022-41032 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Common Problems 115620

System Boots to Emergency Target Instead of Multi-User

🟡 Medium   ⏱ 5–30 min  Last verified: 11 October 2020 📖 ~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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