How to Automate Windows Server Provisioning with PowerShell and Terraform on Windows Server 2022

November 18, 2022
Tutorials
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Infrastructure as Code for Windows Server Environments Infrastructure as Code (IaC) treats server provisioning configuration the same way software engineers treat application code: version-controlled, peer-reviewed, and automatically tested. For Windows Server 2022 environments, combining Terraform for VM lifecycle management with PowerShell DSC for OS configuration creates a complete, repeatable provisioning pipeline. Changes to infrastructure are […]

Ubuntu 22.04 LTS SSH Login Slow Due to Reverse DNS Timeouts

November 17, 2022
Linux
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🟡 Medium ⏱ 5–30 min Last verified: 17 November 2022 📖 ~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 […]

How to Use suma to Automate Fix Downloads on IBM AIX 7.3

November 17, 2022
IBM AIX
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Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use suma to automate fix downloads on IBM AIX […]

Windows Server 2022 — Active Directory Replication Fails with 1722 RPC Errors — Fix & Prevention

November 17, 2022
Tutorials
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🟠 High ⏱ 5–30 min Last verified: 17 November 2022 Affected versions: Windows Server 2022 📖 ~1 min read Table of contents Symptom & Impact Quick Checks Deep Diagnosis Primary Fix Verification Prevention & Hardening Symptom & Impact Domain controllers fail to replicate and show RPC error 1722 in Directory Service and DFS Replication […]

How to Configure Hyper-V on Windows Server 2022

November 17, 2022
Tutorials
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Introduction to Task Scheduler on Windows Server 2022 Task Scheduler is the built-in automation engine in Windows Server 2022. It allows you to run scripts, executables, and PowerShell commands automatically based on time-based or event-based triggers. Understanding Task Scheduler is essential for server administration — from automated backups and log rotation to patch management scripts […]

Ubuntu 18.04 LTS – persistent high iowait caused by background apt jobs – Fix & Prevention

November 16, 2022
Linux
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🟡 Medium ⏱ 5–30 min Last verified: 16 November 2022 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 […]

How to Configure Windows Server 2019 VXLAN

November 16, 2022
Tutorials
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How to Configure Windows Server 2019 VXLAN Virtual Extensible LAN (VXLAN) is a network virtualization technology that encapsulates Layer 2 Ethernet frames within UDP packets, allowing virtual networks to span across Layer 3 boundaries. VXLAN is a key component of Microsoft’s Software Defined Networking (SDN) stack in Windows Server 2019, enabling massive scalability beyond the […]

How to Set Up Always On VPN Infrastructure on Windows Server 2022

November 16, 2022
Tutorials
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Overview of the Kerberos Protocol Kerberos is the default authentication protocol for Active Directory domains in Windows Server 2022. Developed at MIT and standardized in RFC 4120, it uses symmetric-key cryptography and a trusted third party — the Key Distribution Center (KDC) — to authenticate principals (users, computers, and services) without transmitting passwords over the […]

How to Configure Windows Server 2022 Container Registry

November 15, 2022
Tutorials
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What Is Just Enough Administration? Just Enough Administration (JEA) is a PowerShell security feature that allows you to delegate specific administrative capabilities to users without granting them full administrator rights on a system. JEA works by creating a constrained PowerShell remoting endpoint — a custom PSSession configuration — that limits which cmdlets, parameters, functions, providers, […]

Ubuntu 18.04 LTS kernel update leaves system without network driver

November 14, 2022
Linux
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🟡 Medium ⏱ 5–30 min Last verified: 14 November 2022 📖 ~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 […]

Networking

How to Automate Windows Server Provisioning with PowerShell and Terraform on Windows Server 2022

Ubuntu 22.04 LTS SSH Login Slow Due to Reverse DNS Timeouts

How to Use suma to Automate Fix Downloads on IBM AIX 7.3

Windows Server 2022 — Active Directory Replication Fails with 1722 RPC Errors — Fix & Prevention

How to Configure Hyper-V on Windows Server 2022

Ubuntu 18.04 LTS – persistent high iowait caused by background apt jobs – Fix & Prevention

How to Configure Windows Server 2019 VXLAN

How to Set Up Always On VPN Infrastructure on Windows Server 2022

How to Configure Windows Server 2022 Container Registry

Ubuntu 18.04 LTS kernel update leaves system without network driver

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