Troubleshooting

Oracle Linux 8 — gcc-toolset-13-gcc — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gcc-toolset-13-gcc — vulnerability — patch and remediation guide (ELSA-2025-1306)

🟡 Medium   ⏱ 10–30 min  Last verified: 13 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-1306 Related CVEs: CVE-2020-11023 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 — freerdp — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — freerdp — vulnerability — patch and remediation guide (ELSA-2020-2336)

🟠 High   ⏱ 15–60 min  Last verified: 13 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2336 Related CVEs: CVE-2020-11521 CVE-2020-11523 CVE-2020-11524 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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How to Configure Fine-Grained Password Policies on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Fine-Grained Password Policies on Windows Server 2019

Introduction to Fine-Grained Password Policies The Default Domain Password Policy in Active Directory applies uniformly to every user account in the domain. While this simplicity is convenient, it creates a security problem: a helpdesk technician and a Domain Administrator are held to the same password standard. Fine-Grained Password Policies (FGPPs), introduced in Windows Server 2008 […]

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Oracle Linux 8 — virt:ol and virt-devel:rhel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol and virt-devel:rhel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1762)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1762 Related CVEs: CVE-2020-11947 CVE-2020-16092 CVE-2020-25637 CVE-2020-25707 CVE-2020-25723 CVE-2020-27821 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 118520

Ubuntu 16.04 sudo unable to resolve host error

🟡 Medium   ⏱ 5–30 min  Last verified: 12 December 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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Common Problems 113627

Windows Server 2012 R2 — Language Pack Mismatch Prevents LCU Applicability — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 12 December 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Common Problems 113509

Windows Server 2012 R2 – SChannel TLS handshake failures after cipher hardening – Fix & Prevention

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

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How to Configure SSH on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure SSH 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 ssh on ibm aix 7.2 on IBM AIX […]

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How to Configure a Virtual Host in Apache on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure a Virtual Host in Apache on Oracle Linux 8

Introduction Setting up configure a virtual host in apache 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 a Virtual Host in Apache on Oracle Linux 8, with all the commands you need, the SELinux […]

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