Backup Recovery

Common Problems 113396

Windows Server 2012 R2 – Kernel crash loop after cumulative update – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 November 2020 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 […]

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How to Set Up GitLab CE on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up GitLab CE on Oracle Linux 8

Introduction Setting up set up gitlab ce on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up GitLab CE on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

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Common Problems 112431

Windows Server 2019 – Cluster Shared Volume remains in redirected mode – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 November 2020 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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How to Configure HashiCorp Vault on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure HashiCorp Vault on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure hashicorp vault on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure HashiCorp Vault on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Configure System Center Data Protection Manager on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure System Center Data Protection Manager on Windows Server 2016

How to Set Up Windows Server 2016 Data Protection Manager System Center Data Protection Manager (DPM) is Microsoft’s enterprise backup and recovery solution designed for protecting Windows servers, virtual machines, SQL Server databases, Exchange servers, SharePoint farms, and client workstations. Unlike file-level backup tools, DPM uses Volume Shadow Copy Service (VSS) and application-aware backup agents […]

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Common Problems 118583

Ubuntu 16.04 LTS – journald grows rapidly and fills /var – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 7 November 2020 Affected versions: Ubuntu 16.04 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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Common Problems 118426

Ubuntu 16.04 LTS – DNS resolution fails after network config changes

🟠 High   ⏱ 5–30 min  Last verified: 7 November 2020 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

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Common Problems 112567

Windows Server 2019 — KDC service fails to start due to port 88 conflict — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 7 November 2020 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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How to Configure libvirt on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure libvirt on Oracle Linux 8

Introduction Setting up configure libvirt on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure libvirt on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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How to Set Up SSH Key Authentication on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up SSH Key Authentication on Debian 9

Introduction This guide explains how to Set Up SSH Key Authentication on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with […]

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