DNS

Common Problems 115491

SELinux Prevents Custom Service from Binding Non-Standard Port

🟡 Medium   ⏱ 5–30 min  Last verified: 24 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 Always On VPN with Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Always On VPN with Windows Server 2019

Introduction to Always On VPN on Windows Server 2019 Always On VPN (AOVPN) is Microsoft’s successor to DirectAccess, introduced with Windows 10 and Windows Server 2016, and significantly improved in Windows Server 2019. AOVPN automatically establishes a VPN connection when a user’s device is outside the corporate network, without requiring user interaction. Unlike DirectAccess, AOVPN […]

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Common Problems 118409

Ubuntu 16.04 LTS DNS Resolution Intermittently Fails

🟡 Medium   ⏱ 5–30 min  Last verified: 23 January 2020 Affected versions: 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 117985

Ubuntu 18.04 LTS – boot drops into emergency mode after fstab change

🔴 Critical   ⏱ 5–30 min  Last verified: 23 January 2020 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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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How to Install Lighttpd on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Lighttpd on Debian 10

Introduction Deploying install lighttpd on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 10 Buster […]

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How to Install Lighttpd on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Lighttpd on Debian 9

Introduction This guide explains how to Install Lighttpd 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 the standard repositories […]

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How to Install and Configure InfluxDB on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure InfluxDB on Debian 10

Introduction Deploying install and configure influxdb on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

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Common Problems 114937

SELinux Denies Web App Access to Custom Directory

🟡 Medium   ⏱ 5–30 min  Last verified: 22 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 112587

Windows Server 2019 — DFSR backlog freeze halts SYSVOL replication — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 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 121504

Debian 9 – unattended-upgrades lock prevents manual apt operations

🟡 Medium   ⏱ 5–30 min  Last verified: 21 January 2020 Affected versions: Debian 9 📖 ~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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