Logging Monitoring

Arch Linux — mkinitcpio-busybox — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — mkinitcpio-busybox — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201803-2 Related CVEs: CVE-2017-16544 CVE-2021-28831 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.27.2-1. Fixed in: 1.28.1-1. Group: AVG-514. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Debian 11 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-1999-0710 CVE-2002-0713 CVE-2002-0714 CVE-2002-0715 CVE-2002-0916 CVE-2004-0189 CVE-2004-0541 CVE-2004-0832  +12 more Upstream summary: The Squid package in Red Hat Linux 5.2 and 6.0, and other distributions, installs cachemgr.cgi in […]

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How to Configure Windows Server 2019 with Nagios — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Windows Server 2019 with Nagios

How to Configure Windows Server 2019 with Nagios Nagios is a widely-used open-source infrastructure monitoring platform that can monitor Windows Server 2019 hosts for availability, performance, and service health. Integration is achieved through the NSClient++ agent installed on Windows servers, which responds to Nagios check commands over NRPE (Nagios Remote Plugin Executor) or NSCP protocol. […]

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Common Problems 125093

Oracle Linux 8 – Common Problem 013 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 9 January 2022 Affected versions: Oracle Linux 8 📖 ~3 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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Common Problems 115003

RHEL 8 XFS filesystem remounts read-only after metadata error

🟡 Medium   ⏱ 5–30 min  Last verified: 9 January 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 Deploy a Symfony Application on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Deploy a Symfony Application on CentOS Stream 9

Introduction This tutorial demonstrates how to Deploy a Symfony Application on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the […]

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FreeBSD 13 — openx — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — openx — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenX — SQL injection vulnerability Related CVEs: CVE-2013-7149 Upstream summary: Revive reports: An SQL-injection vulnerability was recently discovered and reported to the Revive Adserver team by Florian Sander. The vulnerability […]

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

FreeBSD 12 — graylog — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 January 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: graylog — remote code execution in log4j from user-controlled log input Related CVEs: CVE-2021-44228 CVE-2021-45046 Upstream summary: Apache Software Foundation reports: It was found that the fix to address CVE-2021-44228 […]

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