DNS

Common Problems 124043

Oracle Linux 10 – SSH key authentication denied due to strict permission mismatch – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 2025 Affected versions: Oracle Linux 10 📖 ~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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NetBSD 10.0 — bind — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — bind — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2009-0696 CVE-2009-4022 CVE-2019-6477 CVE-2020-8617 CVE-2020-8618 CVE-2020-8619 CVE-2020-8624 CVE-2021-25214  +12 more Upstream summary: pkgsrc audit-packages flagged bind<9.4.3pl3 for vulnerability class 'remote-denial-of-service'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0696 Table of contents Symptom & Impact Environment […]

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Common Problems 124022

Oracle Linux 10 – SELinux AVC denials after update break service startup – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 August 2025 Affected versions: Oracle Linux 10 📖 ~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 Squid Proxy on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Configure Squid Proxy on Debian 13

Introduction Deploying configure squid proxy on a Debian 13 Trixie 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 13 Trixie is fully […]

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Common Problems 119562

Debian 13 – kubelet Won’t Start Because Swap Is Enabled – Node Recovery

🟠 High   ⏱ 5–30 min  Last verified: 29 August 2025 Affected versions: Debian 13 (Trixie) 📖 ~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 119502

Debian 13 – systemd-timesyncd Not Synchronizing Clock – NTP Recovery

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 2025 Affected versions: Debian 13 (Trixie) 📖 ~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 Use Docker Compose on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Use Docker Compose on Debian 13

Introduction This guide explains how to Use Docker Compose on Debian 13 on Debian 13 Trixie. Debian Trixie 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 13 install with the standard […]

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Common Problems 113960

RHEL 10 – firewalld rich rule does not persist across reboot – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 August 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 124047

LVM Thin Pool Reaches 100 Percent and Freezes Writes

🔴 Critical   ⏱ 5–30 min  Last verified: 28 August 2025 Affected versions: Oracle Linux 10 📖 ~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 124184

Oracle Linux 10 – cockpit web console inaccessible despite running service – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 August 2025 Affected versions: Oracle Linux 10 📖 ~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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