Linux

Oracle Linux 8 — grafana — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grafana — vulnerability — patch and remediation guide (ELSA-2026-1344)

🟠 High   ⏱ 15–60 min  Last verified: 30 August 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-1344 Related CVEs: CVE-2025-61729 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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SLES 12 — udisks2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — udisks2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 August 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:15017 (see also SUSE bugzilla) Related CVEs: CVE-2025-8067 CVE-2021-3802 CVE-2014-0004 Upstream summary: A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS […]

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openSUSE Leap 15.6 — cups — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — cups — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:15700 (see also SUSE bugzilla) Related CVEs: CVE-2025-58060 CVE-2024-47175 CVE-2024-35235 CVE-2025-58436 CVE-2025-61915 CVE-2025-58364 Upstream summary: OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In […]

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Common Problems 119506

Debian 13 systemd Service Fails on Startup After Config Change

🟡 Medium   ⏱ 5–30 min  Last verified: 30 August 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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How to Set Up a Static IP Address with Netplan on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up a Static IP Address with Netplan on Debian 13

Introduction How to Set Up a Static IP Address with Netplan on Debian 13 is a fundamental operation for any administrator maintaining a Debian 13 Trixie server. Debian 13 Trixie ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains […]

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Common Problems 127119

CentOS Stream 10 – Common Problem 241 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 29 August 2025 Affected versions: CentOS Stream 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 124114

Oracle Linux 10 – NFS exports inaccessible due to firewalld zone mismatch – 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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Debian 13 — ruby-excon — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ruby-excon — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 August 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16779 Upstream summary: In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave […]

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How to Create a Custom systemd Service Unit on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Create a Custom systemd Service Unit on RHEL 10

Introduction Setting up create a custom systemd service unit on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Create a Custom systemd Service Unit on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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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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