DNS

How to Inspect Container Images with Skopeo on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Inspect Container Images with Skopeo on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying inspect container images with skopeo both straightforward and auditable. This tutorial covers the complete procedure for how to Inspect Container Images with Skopeo on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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Common Problems 114024

RHEL 10 – SSSD Offline and Domain Users Cannot Authenticate – Identity Service Recovery

🔴 Critical   ⏱ 5–30 min  Last verified: 18 December 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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Debian 13 — dnsdist — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — dnsdist — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 December 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7069 CVE-2017-7557 CVE-2018-14663 CVE-2023-44487 CVE-2024-25581 CVE-2025-30187 CVE-2025-30193 CVE-2025-30194  +12 more Upstream summary: An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are […]

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Common Problems 114627

RHEL 9 HTTP Service Reachable Locally but Blocked Externally

🟡 Medium   ⏱ 5–30 min  Last verified: 17 December 2025 📖 ~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 122074

Boot Loader Prompt Appears Instead of Normal Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 16 December 2025 Affected versions: FreeBSD 15 📖 ~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 113952

chronyd not synchronizing time on boot

🟡 Medium   ⏱ 5–30 min  Last verified: 16 December 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary System clock drifts because chronyd never reaches synchronized state. Symptoms timedatectl shows […]

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Oracle Linux 9 — bind9.18 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — bind9.18 — vulnerability — patch and remediation guide (ELSA-2025-19950)

🟠 High   ⏱ 15–60 min  Last verified: 16 December 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-19950 Related CVEs: CVE-2025-8677 CVE-2025-40780 CVE-2025-40778 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 113927

RHEL 10 – firewalld rich rule disappears after reload – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 15 December 2025 Affected versions: RHEL 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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FreeBSD 15 — unbound — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — unbound — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: unbound — Possible domain hijacking via promiscuous records in the authority section Related CVEs: CVE-2011-1922 CVE-2011-4528 CVE-2014-8602 CVE-2017-15105 CVE-2019-16866 CVE-2019-18934 CVE-2020-12662 CVE-2020-12663  +10 more Upstream summary: [email protected] reports: NLnet Labs […]

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How to Install MySQL 8 on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install MySQL 8 on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying install mysql 8 on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Install MySQL 8 on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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