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Oracle Linux 8 — ruby:2.5 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ruby:2.5 — vulnerability — patch and remediation guide (ELSA-2025-7539)

🟡 Medium   ⏱ 10–30 min  Last verified: 3 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-7539 Related CVEs: CVE-2019-19012 CVE-2021-43809 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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How to Set Up MariaDB Replication on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up MariaDB Replication on Debian 11

Introduction How to Set Up MariaDB Replication on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. […]

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How to Set Up Kerberos KDC on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up Kerberos KDC 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 set up kerberos kdc on ibm aix 7.1 on […]

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Alpine Linux edge — ruby-nokogiri — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — ruby-nokogiri — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.13.6-r0 📖 ~4 min read  •  Source: Alpine secdb entry — ruby-nokogiri 1.13.6-r0 Related CVEs: CVE-2022-29181 CVE-2022-24836 CVE-2022-23476 CVE-2020-26247 CVE-2019-5477 Upstream summary: Alpine community repository for vedge ships ruby-nokogiri 1.13.6-r0 which addresses CVE-2022-29181. Table of contents […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9264)

🟠 High   ⏱ 15–60 min  Last verified: 3 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9264 Related CVEs: CVE-2022-1158 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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FreeBSD 13 — ruby — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ruby — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 April 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rubygem-resolv — Possible denial of service Related CVEs: CVE-2004-0755 CVE-2004-0983 CVE-2005-1992 CVE-2005-2337 CVE-2006-3694 CVE-2006-5467 CVE-2006-6303 CVE-2008-1447  +12 more Upstream summary: Manu reports: The vulnerability is caused by an insufficient check […]

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openSUSE Tumbleweed — jhead — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — jhead — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:10202-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-34055 CVE-2022-41751 CVE-2021-3496 CVE-2008-4575 CVE-2008-4641 CVE-2018-6612 CVE-2016-3822 CVE-2018-16554  +1 more Upstream summary: jhead 3.06 is vulnerable to Buffer Overflow via exif.c in function Put16u. Table […]

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How to Set Up Windows Server 2019 Nano Server — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 Nano Server

How to Set Up Windows Server 2019 Nano Server Windows Server 2019 Nano Server is an ultra-minimal deployment option designed specifically for running as a container host or cloud-optimised workload. Unlike Server Core which retains most Windows Server capabilities in a headless form, Nano Server in Windows Server 2019 has been redesigned exclusively as a […]

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How to Set Up FTP Server on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Set Up FTP Server 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 set up ftp server on ibm aix 7.1 on […]

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