Backup Recovery

Debian 13 — storebackup — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — storebackup — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 December 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3146 CVE-2005-3147 CVE-2005-3148 CVE-2020-7040 Upstream summary: StoreBackup before 1.19 allows local users to perform unauthorized operations on arbitrary files via a symlink attack on temporary files. Table of […]

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Common Problems 114113

SSSD offline authentication intermittently fails

🟠 High   ⏱ 5–30 min  Last verified: 27 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 Domain users cannot log in during directory service outages. Symptoms pam_sss errors […]

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Common Problems 113968

RHEL 10 SSH Public Key Authentication Suddenly Stops Working

🟠 High   ⏱ 5–30 min  Last verified: 26 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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Common Problems 114015

RHEL 10 – firewalld zone assignment resets when interface name changes

🟡 Medium   ⏱ 5–30 min  Last verified: 25 December 2025 Affected versions: RHEL 10 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 & […]

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How to Configure PAM on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure PAM on Oracle Linux 10

Introduction How to Configure PAM on Oracle Linux 10 on Oracle Linux 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible […]

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Common Problems 114123

dnsmasq conflicts with system resolver on port 53

🟡 Medium   ⏱ 5–30 min  Last verified: 24 December 2025 Affected versions: RHEL 10.0 📖 ~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 Local DNS service fails to bind because port 53 is already in use. Symptoms […]

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Common Problems 114052

NFS mount delays boot with long timeout

🟠 High   ⏱ 5–30 min  Last verified: 23 December 2025 Affected versions: RHEL 10.0 📖 ~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 startup hangs waiting for unreachable NFS mount targets. Symptoms Boot reaches emergency or […]

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How to Configure Bridge Networking on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Bridge Networking on RHEL 10

Introduction Setting up configure bridge networking on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Bridge Networking on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the […]

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Common Problems 113991

RHEL 10 – boot drops to emergency mode from stale fstab UUID entry – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 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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Common Problems 114071

RHEL 10 – dnf lock contention from background PackageKit process – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 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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