Kernel Drivers

How to Configure auditd for Security Event Logging on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure auditd for Security Event Logging on RHEL 8

The Linux Audit daemon (auditd) ships enabled by default on RHEL 8 and provides a kernel-level event logging subsystem capable of recording file access, system calls, user logins, and privilege escalation. Unlike application-level logging, audit records are written directly by the kernel and are tamper-evident, making them suitable for compliance frameworks such as PCI-DSS, HIPAA, […]

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Common Problems 112617

Windows Server 2019 — Hyper-V VMMS crash takes virtual machines offline — Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 10 May 2023 Affected versions: Windows Server 2019 📖 ~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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Common Problems 111871

Windows Server 2022 — Failover cluster witness resource lost quorum after file share deletion — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 May 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 Configure DRBD for High Availability on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure DRBD for High Availability on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying configure drbd for high availability on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure DRBD for High Availability on Oracle Linux 9, including dnf module streams where applicable, systemd unit management, and the […]

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How to Set Up Work Folder Sync with AD Integration on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Work Folder Sync with AD Integration on Windows Server 2022

Work Folders Overview and AD Integration Architecture Work Folders is a Windows Server sync role service that provides a corporate Dropbox-style file sync experience — but integrated with Active Directory, enforced by Group Policy, and hosted entirely on infrastructure you control. Unlike consumer sync services, Work Folders uses the user’s AD UPN as the identity […]

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Common Problems 111781

Windows Server 2022 — SQL Server connection pooling exhaustion causing application timeouts — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 9 May 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 Configure IIS Logging and Analysis on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure IIS Logging and Analysis on Windows Server 2022

How to Configure IIS Logging and Analysis on Windows Server 2022 Internet Information Services (IIS) on Windows Server 2022 generates detailed access logs for every HTTP request processed by the web server. These logs are the primary data source for diagnosing application errors, identifying performance bottlenecks, detecting security threats, and auditing user activity. This guide […]

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How to Set Up Database Backups with Percona XtraBackup on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Database Backups with Percona XtraBackup on Oracle Linux 9

Introduction Oracle Linux 9 ships with a stable, security-hardened base that makes deploying set up database backups with percona xtrabackup on oracle linux 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Database Backups with Percona XtraBackup on Oracle Linux 9, including dnf module streams where applicable, systemd […]

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Ubuntu 14.04 — qemu — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — qemu — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 8 May 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7094-1 Related CVEs: CVE-2019-20382 CVE-2020-13765 CVE-2020-1983 CVE-2020-7039 CVE-2020-8608 CVE-2021-3592 CVE-2021-3594 CVE-2023-3019  +12 more Upstream summary: It was discovered that QEMU incorrectly handled memory during certain VNC operations. A remote attacker […]

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Common Problems 117602

Ubuntu 20.04 LTS User Login Loop at GDM

🟡 Medium   ⏱ 5–30 min  Last verified: 7 May 2023 Affected versions: 20.04 LTS 📖 ~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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