How to Configure the Protected Users Security Group on Windows Server 2012 R2 The Protected Users security group is a new security principal introduced in Windows Server 2012 R2 that provides automatic, non-configurable credential protections for its members. Unlike standard security groups, membership in Protected Users triggers behavioral changes in both the client (Windows 8.1+) […]
🟠 High ⏱ 5–30 min Last verified: 13 June 2019 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 […]
How to Set Up Health Attestation Service on Windows Server 2016 Device Health Attestation (DHA) is a Windows Server 2016 feature that allows an organization to verify the security health of Windows 10 and Windows Server 2016 devices before granting them access to corporate resources. The Health Attestation Service works by communicating with the Trusted […]
How to Set Up Windows Server 2016 PowerShell Web Access PowerShell Web Access (PSWA) is a feature in Windows Server 2016 that provides a web-based PowerShell console, allowing administrators to run PowerShell commands from any device with a modern browser. This is particularly valuable in environments where traditional remote management tools are blocked by firewalls, […]
🔴 Critical ⏱ 5–30 min Last verified: 12 June 2019 Affected versions: Ubuntu 18.04 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 […]
🟠 High ⏱ 5–30 min Last verified: 12 June 2019 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 […]
🟠 High ⏱ 5–30 min Last verified: 11 June 2019 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 […]
How to Configure DNS Split-Brain (Split Horizon) on Windows Server 2012 R2 DNS Split-Brain (also called Split Horizon DNS) is a configuration where the same DNS namespace resolves to different IP addresses depending on where the query originates. The most common use case is a corporate domain (contoso.com) that must resolve to internal IP addresses […]
How to Set Up ZFS on RHEL 7 ZFS (Zettabyte File System) originated at Sun Microsystems and is widely regarded as the most feature-rich and reliable open-source file system available. It combines volume management, RAID, checksumming, copy-on-write snapshots, deduplication, and transparent compression into a single unified stack. The ZFS on Linux (ZoL) project brings these […]
Login banners are a critical security control that display legal warnings before and after users authenticate to a system. On RHEL 8, three separate mechanisms control banner messages: /etc/issue for local console pre-login text, /etc/issue.net for SSH pre-login banners, and /etc/motd for the message of the day shown after login. Properly configured banners inform authorized […]
