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Common Problems 115450

Port Already in Use Blocks Service Bind

🟡 Medium   ⏱ 5–30 min  Last verified: 26 November 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 & Cross-Refs References & Further […]

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How to Use instfix to Check Installed Fixes on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Use instfix to Check Installed Fixes on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use instfix to check installed fixes on IBM AIX […]

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Common Problems 111647

Windows Server 2022 — AD DS replication fails with error 1722 (RPC Server Unavailable) — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 November 2022 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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AlmaLinux 9 — perl-XML-Parser — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — perl-XML-Parser — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:7679 Related CVEs: CVE-2006-10002 CVE-2006-10003 Upstream summary: This module provides ways to parse XML documents. It is built on top of XML::Parser::Expat, which is a lower level interface to James Clark's expat […]

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FreeBSD 12 — py39-setuptools — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-setuptools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 November 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-setuptools — denial of service vulnerability Related CVEs: CVE-2022-40897 Upstream summary: SCH227 reports: Python Packaging Authority (PyPA)'s setuptools is a library designed to facilitate packaging Python projects. Setuptools version 65.5.0 […]

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How to Configure DB2 HADR on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure DB2 HADR on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure db2 hadr on ibm aix 7.2 on IBM […]

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Debian 11 — fai — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — fai — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-6614 Upstream summary: The save_log_local function in Fully Automatic Installation (FAI) 2.10.1, and possibly 3.1.2, when verbose mode is enabled, stores the root password hash in /var/log/fai/current/fai.log, whose […]

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What is Ansible? — step-by-step Devops tutorial on Progressive Robot

What is Ansible?

Ansible is an open source configuration management tool that provides a minimalist server automation framework based on YAML definitions. Its simplified infrastructure requirements and accessible syntax helped make Ansible one of the most popular configuration management tools to date.

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How to Set Up Node Exporter for Server Metrics on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Node Exporter for Server Metrics on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up node exporter for server metrics on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each […]

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