Linux

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

Oracle Linux 8 — libreswan — vulnerability — patch and remediation guide (ELSA-2023-7052)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7052 Related CVEs: CVE-2023-38712 CVE-2023-38710 CVE-2023-38711 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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openSUSE Leap 15.5 — ftdiff — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — ftdiff — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:2776-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-2004 Upstream summary: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation […]

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Oracle Linux 9 — bluez — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — bluez — vulnerability — patch and remediation guide (ELSA-2024-9413)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-9413 Related CVEs: CVE-2023-45866 CVE-2023-27349 CVE-2023-50230 CVE-2023-50229 CVE-2023-51592 CVE-2023-51589 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 9 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide (ELSA-2022-4765)

🔴 Critical   ⏱ 15–90 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4765 Related CVEs: CVE-2022-1529 CVE-2022-1802 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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Comment installer Jenkins sur Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Comment installer Jenkins sur Ubuntu 20.04

Si vous devez réaliser des tâches techniques répétitives, cela peut s’avérer être difficile de trouver des solutions d’automatisation qui répondent à vos attentes. Avec Jenkins, un serveur d’automatisation open-source, vous pouvez gérer vos tâches…

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How to Upgrade from Debian 11 to Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Upgrade from Debian 11 to Debian 12

Introduction How to Upgrade from Debian 11 to Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm 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 differ from Debian 12. […]

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Oracle Linux 9 — xorg-x11-server update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — xorg-x11-server update (ELSA-2025-19433)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-19433 Related CVEs: CVE-2025-62229 CVE-2025-62231 CVE-2025-62230 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 119981

Debian 12 – GRUB Rescue Prompt After Kernel Update – Restore Bootability

🔴 Critical   ⏱ 5–30 min  Last verified: 14 September 2023 Affected versions: Debian 12 📖 ~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 a Virtual Host in Apache on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure a Virtual Host in Apache on CentOS Stream 9

Introduction Setting up configure a virtual host in apache on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure a Virtual Host in Apache on CentOS Stream 9, with all the commands you need, the SELinux […]

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Common Problems 117051

Ubuntu 22.04 LTS – Docker bridge networking broken after nftables changes – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 14 September 2023 Affected versions: Ubuntu 22.04 LTS 📖 ~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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