DNS

How To Use Terraform with the cloud provider — step-by-step Web Servers tutorial on Progressive Robot

How To Use Terraform with the cloud provider

Terraform is a tool for building and managing infrastructure in an organized way. In this tutorial, you’ll install and use Terraform to create an infrastructure on the cloud provider that consists of two Nginx servers that are load balanced by a load balancers.

Read more
How to Install Nginx on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Install Nginx on Oracle Linux 9

Introduction This tutorial demonstrates how to Install Nginx on Oracle Linux 9 on Oracle Linux 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 9 system with the default AppStream […]

Read more
How to Set Up Windows Server 2022 Network Controller — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Windows Server 2022 Network Controller

Introduction to Blue-Green Deployment on Windows Server 2022 Blue-green deployment is a release technique that maintains two identical production environments — one active (blue), one idle (green). A new version is deployed to the idle environment, validated, and then traffic is switched instantly from blue to green. If anything goes wrong after the switch, traffic […]

Read more
Common Problems 117944

Ubuntu 18.04 drops to GRUB rescue prompt

🟡 Medium   ⏱ 5–30 min  Last verified: 21 April 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 […]

Read more
Common Problems 111825

Windows Server 2022 Cluster Shared Volume Stuck in Redirected Mode – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 April 2023 Affected versions: Windows Server 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 […]

Read more
How to Set Up Microsoft Entra (Azure AD) Hybrid Join on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Microsoft Entra (Azure AD) Hybrid Join on Windows Server 2022

Hybrid Azure AD Join Overview Microsoft Entra Hybrid Join (formerly Azure AD Hybrid Join) is the process of registering on-premises Active Directory domain-joined devices with both the on-premises AD and Microsoft Entra ID (formerly Azure Active Directory). After a successful Hybrid Join, a device has a presence in both identity systems: it has an on-premises […]

Read more
An Introduction to DNS Terminology, Components, and Concepts — step-by-step Linux tutorial on Progressive Robot

An Introduction to DNS Terminology, Components, and Concepts

DNS, or the Domain Name System, is an integral part of how the internet functions today. However, the way that DNS works is often quite mysterious for new administrators. In this guide, we will discuss some of the common terminology and concepts that are involved in DNS configuration.

Read more
Common Problems 113559

Windows Server 2012 R2 – NTFS ACL inheritance disabled causing access denied – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 April 2023 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 […]

Read more
Common Problems 113438

Windows Server 2012 R2 — CBS Manifest Corruption Causes 0x80073701 Update Failure — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 April 2023 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 […]

Read more
Common Problems 111864

Windows Server 2022 — Private container registry unreachable because DNS records are incorrect — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 April 2023 Affected versions: Windows Server 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 […]

Read more
CHAT