Troubleshooting

Common Problems 118464

Ubuntu 16.04 LTS swap thrashing after memory pressure spike

🟠 High   ⏱ 5–30 min  Last verified: 10 November 2020 Affected versions: 16.04 📖 ~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 […]

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How to Deploy a Laravel Application on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Deploy a Laravel Application on SLES 15

Introduction This tutorial covers How to Deploy a Laravel Application on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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Common Problems 112994

Windows Server 2016 — Primary group SID anomaly stops member from inheriting Domain Users rights — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 November 2020 Affected versions: Windows Server 2016 📖 ~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 Errors […]

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Oracle Linux 8 — python38:3.8 and python38-devel:3.8 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python38:3.8 and python38-devel:3.8 — vulnerability — patch and remediation guide (ELSA-2021-2583)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2583 Related CVEs: CVE-2020-14343 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 112983

Windows Server 2016 — BITS service job database corruption — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 November 2020 Affected versions: Windows Server 2016 📖 ~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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Oracle Linux 8 — libssh — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libssh — vulnerability — patch and remediation guide (ELSA-2021-4387)

🟢 Low   ⏱ 5–15 min  Last verified: 10 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4387 Related CVEs: CVE-2020-16135 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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How to Use errpt for Error Reporting on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use errpt for Error Reporting 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 use errpt for error reporting on ibm aix 7.1 […]

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How to Configure flrtvc for Vulnerability Assessment on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure flrtvc for Vulnerability Assessment 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 configure flrtvc for vulnerability assessment on ibm aix 7.2 […]

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How to Set Up SSH Two-Factor Authentication on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up SSH Two-Factor Authentication on Oracle Linux 8

Introduction Setting up set up ssh two-factor authentication 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 Set Up SSH Two-Factor Authentication on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

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

Oracle Linux 8 — flatpak — vulnerability — patch and remediation guide (ELSA-2019-1143)

🟠 High   ⏱ 15–60 min  Last verified: 10 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1143 Related CVEs: CVE-2019-10063 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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