Kernel Drivers

How to Configure Multi-Site Active Directory on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Multi-Site Active Directory on Windows Server 2022

Understanding Active Directory Sites and Services Active Directory Sites and Services is a Microsoft Management Console (MMC) snap-in and a core component of Active Directory that controls how directory replication occurs across a distributed network. An AD site is a logical representation of a physical network location — typically corresponding to a geographical location, a […]

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Common Problems 111751

Windows Server 2022 — SQL Server Named Pipes disabled by Server 2022 hardening GPO causing failures — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 March 2023 Affected versions: Windows Server 2022 📖 ~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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How to Set Up PowerShell Remoting on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up PowerShell Remoting on Windows Server 2022

How to Set Up Let’s Encrypt SSL for IIS on Windows Server 2022 Let’s Encrypt is a free, automated certificate authority that issues Domain Validation (DV) SSL certificates valid for 90 days. On Windows Server 2022 with IIS, the most common tools for obtaining and auto-renewing Let’s Encrypt certificates are win-acme (WACS) and Certify The […]

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Amazon Linux 2 — kernel-livepatch-5.10.82-83.359 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.82-83.359 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2022-076 Related CVEs: CVE-2021-4155 CVE-2022-0185 Upstream summary: A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned […]

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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9182)

🟠 High   ⏱ 15–60 min  Last verified: 9 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9182 Related CVEs: CVE-2022-25636 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 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2023-12120)

🟠 High   ⏱ 15–60 min  Last verified: 9 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12120 Related CVEs: CVE-2022-3545 CVE-2023-0179 CVE-2022-45869 CVE-2022-4139 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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How to Set Up a PKI Infrastructure with AD CS on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up a PKI Infrastructure with AD CS on Windows Server 2022

Understanding PKI and Why It Matters Public Key Infrastructure (PKI) is the combination of hardware, software, policies, and procedures required to create, manage, distribute, use, store, and revoke digital certificates. Certificates are used throughout modern Windows environments for TLS/HTTPS encryption, code signing, email signing and encryption (S/MIME), smart card logon, IPsec, Wi-Fi (802.1X), and many […]

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How to Configure SSL/TLS with OpenSSL on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure SSL/TLS with OpenSSL on Oracle Linux 9

Introduction How to Configure SSL/TLS with OpenSSL on Oracle Linux 9 on Oracle Linux 9 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 configuration […]

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Oracle Linux 9 — Kernel Issues — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Kernel Issues (OL9-ISSUES-KERNEL)

🟠 High   ⏱ 5–30 min  Last verified: 7 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug RELOL-ol9-issues-kernel 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 115512

Kernel update leaves system booting old kernel

🟡 Medium   ⏱ 5–30 min  Last verified: 7 March 2023 📖 ~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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