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

Oracle Linux 9 — galera and mariadb — vulnerability — patch and remediation guide (ELSA-2023-5684)

🟠 High   ⏱ 15–60 min  Last verified: 30 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5684 Related CVEs: CVE-2022-32081 CVE-2022-47015 CVE-2022-32089 CVE-2022-32082 CVE-2023-5157 CVE-2022-38791 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Comment installer Nginx sur Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Comment installer Nginx sur Ubuntu 20.04

Nginx est l’un des serveurs web les plus populaires au monde et se charge de l’hébergement de certains des sites les plus importants et les plus fréquentés sur Internet. C’est une option légère qui peut être utilisée comme serveur web ou proxy…

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How to Install MySQL 5.6 from Official Yum Repositories — step-by-step Linux tutorial on Progressive Robot

How to Install MySQL 5.6 from Official Yum Repositories

In October 2013, the MySQL development team officially launched support for yum repositories. This means that you can now ensure that you have the latest and greatest version of MySQL installed directly from the source! In this guide we will install MySQL 5.6 on a fresh installation of Centos 6, and then apply a couple of extra touches to optimize configuration for the cloud provider.

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Oracle Linux 9 — containernetworking-plugins — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — containernetworking-plugins — security and stability fixes — required update (ELSA-2023-2367)

🟡 Medium   ⏱ 10–30 min  Last verified: 29 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2367 Related CVEs: CVE-2022-30629 CVE-2022-41717 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 115407

yum Cannot Resolve Repository Hostnames

🟡 Medium   ⏱ 5–30 min  Last verified: 29 March 2023 📖 ~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 111887

Windows Server 2022 — RDP logon fails with NLA errors after TLS hardening change — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 29 March 2023 Affected versions: Windows Server 2022 📖 ~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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openSUSE Tumbleweed — python39-MechanicalSoup — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python39-MechanicalSoup — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-34457 Upstream summary: MechanicalSoup is a Python library for automating interaction with websites. Starting in version 0.2.0 and prior to version 1.3.0, a malicious web […]

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FreeBSD 12 — py38-cryptography — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py38-cryptography — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 March 2023 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-cryptography — includes a vulnerable copy of OpenSSL Related CVEs: CVE-2023-0286 CVE-2023-23931 Upstream summary: pyca/cryptography's wheels include a statically linked copy of OpenSSL. The versions of OpenSSL included in cryptography […]

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How to Configure Corosync on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Corosync on SLES 15

Introduction This tutorial covers How to Configure Corosync on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh && […]

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How to Use AIX Security Expert on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use AIX Security Expert on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use aix security expert on ibm aix 7.1 on […]

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