Kernel Drivers

Common Problems 111841

Windows Server 2022 — Windows Server 2022 failover cluster node evicted after network partition — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 16 December 2022 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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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-2022-9245)

🟠 High   ⏱ 15–60 min  Last verified: 16 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9245 Related CVEs: CVE-2022-23960 CVE-2022-25636 CVE-2022-0435 CVE-2022-0492 CVE-2021-3656 CVE-2022-0847 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Use Veeam Backup for Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Use Veeam Backup for Windows Server 2022

Introduction to Veeam Backup for Windows Server 2022 Veeam Backup & Replication is one of the most widely used enterprise backup solutions, known for its rich feature set, reliability, and support for both virtual machine and physical server workloads. For Windows Server 2022, Veeam offers two primary deployment paths: agent-based backup for physical servers or […]

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How to Tune Scheduler with schedo on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Tune Scheduler with schedo 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 tune scheduler with schedo on ibm aix 7.2 on […]

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How to Install Perl on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Perl on FreeBSD 12

Introduction How to Install Perl on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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Oracle Linux 9 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — vulnerability — patch and remediation guide (ELSA-2024-9315)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 December 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-9315 Related CVEs: CVE-2019-25162 CVE-2020-10135 CVE-2021-47098 CVE-2021-47101 CVE-2021-47185 CVE-2021-47384 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Configure Windows Server for SAML/SSO Integration on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Server for SAML/SSO Integration on Windows Server 2022

Understanding SAML 2.0 and Federated Identity Security Assertion Markup Language 2.0 (SAML 2.0) is an open XML-based standard for exchanging authentication and authorization data between an Identity Provider (IdP) and a Service Provider (SP). It is the dominant protocol for enterprise Single Sign-On (SSO) integration with web applications such as Salesforce, ServiceNow, AWS, and hundreds […]

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Common Problems 112453

Windows Server 2019 — PXE clients fail to obtain boot options from DHCP policy classes on Server 2019 — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 13 December 2022 Affected versions: Windows Server 2019 📖 ~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 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2023-12008)

🟠 High   ⏱ 15–60 min  Last verified: 13 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12008 Related CVEs: CVE-2022-42895 CVE-2022-4378 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 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9590)

🟠 High   ⏱ 15–60 min  Last verified: 12 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9590 Related CVEs: CVE-2022-29901 CVE-2022-23816 CVE-2022-1652 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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