chris

How to Install Elasticsearch 8 on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Elasticsearch 8 on Debian 13

Introduction Deploying install elasticsearch 8 on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 13 Trixie is fully […]

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Common Problems 116400

Ubuntu 24.04 LTS – unmet dependencies and held packages during apt upgrade – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 October 2025 Affected versions: Ubuntu 24.04 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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SLES 15 — augeas — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — augeas — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 October 2025 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2014:1017-1 (see also SUSE bugzilla) Related CVEs: CVE-2012-0786 CVE-2014-8119 CVE-2025-2588 CVE-2017-7555 Upstream summary: The transform_save function in transform.c in Augeas before 1.0.0 allows local users to overwrite arbitrary files and obtain sensitive […]

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Common Problems 111206

Windows Server 2025 — IIS Application Pool crashing with Event ID 5002 on Windows Server 2025 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 24 October 2025 Affected versions: Windows Server 2025 📖 ~2 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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Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2025-3582)

🟠 High   ⏱ 15–60 min  Last verified: 24 October 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-3582 Related CVEs: CVE-2025-3029 CVE-2025-3028 CVE-2025-3030 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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Rocky Linux 9 — wireshark — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — wireshark — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2025:23142 Related CVEs: CVE-2025-13499 Upstream summary: The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network. Security Fix(es): * wireshark: […]

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How to Configure VIO Server for LPAR Virtualization on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure VIO Server for LPAR Virtualization 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 configure vio server for lpar virtualization on ibm aix […]

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Common Problems 114111

RHEL 10 – chrony sources unreachable because firewalld egress rules block NTP – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 24 October 2025 Affected versions: RHEL 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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How to Install Promtail on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Promtail on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install promtail on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will persist […]

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