DNS

Common Problems 125063

Oracle Linux 8 – Common Problem 010 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 30 October 2020 Affected versions: Oracle Linux 8 📖 ~3 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 115089

RHEL 8 – /boot Space Exhaustion Breaks Kernel Update Workflow

🟡 Medium   ⏱ 5–30 min  Last verified: 30 October 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 a Certificate Authority on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up a Certificate Authority on Windows Server 2012 R2

How to Set Up a Certificate Authority on Windows Server 2012 R2 A Certificate Authority (CA) issues digital certificates that bind cryptographic keys to entities such as users, computers, and services. In Windows environments, an internal CA based on Active Directory Certificate Services (AD CS) enables automatic certificate enrolment for domain members, supports smart card […]

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How to Set Up Oracle Linux 8 with Podman in Rootless Mode — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Oracle Linux 8 with Podman in Rootless Mode

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up oracle linux 8 with podman in rootless mode both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Oracle Linux 8 with Podman in Rootless Mode, including dnf module streams where applicable, systemd unit management, […]

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Common Problems 119054

Ubuntu 14.04 LTS TLS Handshake Errors with Legacy OpenSSL

🟡 Medium   ⏱ 5–30 min  Last verified: 29 October 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 117509

Ubuntu 20.04 keyboard layout keeps resetting

🟡 Medium   ⏱ 5–30 min  Last verified: 29 October 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 Configure DNS Resolution on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure DNS Resolution on Oracle Linux 8

Introduction Setting up configure dns resolution 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 DNS Resolution on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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Common Problems 113077

Windows Server 2016 — Dual-scan behaviour causes clients to bypass WSUS for feature updates — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 29 October 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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Debian 10 — unbound — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — unbound — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 October 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16866 CVE-2020-12662 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 121548

Cron Jobs Not Running Due to Environment Path Issues

🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 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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