Backup Recovery

Common Problems 119126

Ubuntu 14.04 LTS – Postfix mail queue backlog grows uncontrollably – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 6 January 2020 Affected versions: Ubuntu 14.04 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 115135

RHEL 8 Cockpit Web Console Unreachable on Port 9090 – RHEL 8 Post 124

🟡 Medium   ⏱ 5–30 min  Last verified: 6 January 2020 📖 ~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 […]

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Common Problems 114968

RHEL 8 Podman Containers Cannot Resolve DNS Names

🟡 Medium   ⏱ 5–30 min  Last verified: 6 January 2020 📖 ~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 […]

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How to Set Up Unbound DNS Resolver on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Unbound DNS Resolver on Debian 9

Introduction This guide explains how to Set Up Unbound DNS Resolver 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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How to Install and Configure Samba File Server on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Samba File Server on Debian 9

Introduction This guide explains how to Install and Configure Samba File Server 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 […]

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Common Problems 113407

Windows Server 2012 R2 — Chocolatey package install fails due to TLS 1.2 handshake error — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 January 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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Common Problems 112414

Windows Server 2019 — MSI install fails with error 1603 fatal error during installation — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 January 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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Common Problems 112407

Windows Server 2019 – Storport miniport resets under heavy I/O – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 January 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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Common Problems 115500

Disk Full Under /var Causes Service Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 4 January 2020 📖 ~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 […]

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Common Problems 113017

Windows Server 2016 — Custom MSI authoring fails ICE validation in build pipeline — Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 4 January 2020 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 […]

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