Cómo configurar Packet Filter (PF) en FreeBSD 12.1
El autor seleccionó el COVID-19 Relief Fund para que reciba una donación como parte del programa Write for DOnations. El firewall posiblemente sea una de las líneas de…
How to Install and Configure IIS on Windows Server 2016
How to Configure Windows Server 2016 IIS Web Server Internet Information Services (IIS) 10.0 is the web server platform included with Windows Server 2016. It supports HTTP, HTTPS, FTP, and WebSockets, and is used to host websites, web applications, REST APIs, and web services. This guide covers installing IIS, creating websites, configuring bindings and SSL […]
Alpine Linux edge — prometheus-blackbox-exporter — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.18.0-r0 📖 ~4 min read • Source: Alpine secdb entry — prometheus-blackbox-exporter 0.18.0-r0 Related CVEs: CVE-2020-16248 Upstream summary: Alpine community repository for vedge ships prometheus-blackbox-exporter 0.18.0-r0 which addresses CVE-2020-16248. Table of contents Symptom & Impact Environment […]
Why Your 2020 Cloud Migration Failed Your 2026 Budget: Shifting from Lift-and-Shift to Native Refactoring
A practical guide to why legacy lift-and-shift cloud migrations fail modern budgets, how to assess re-platforming and refactoring options, and how to build a financially defensible modernization roadmap.
Oracle Linux 8 — httpd:2.4 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-1809)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-1809 Related CVEs: CVE-2020-11993 CVE-2018-17199 CVE-2020-11984 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
RHEL 7 – Apache Service Fails Due to SELinux File Context Drift
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 […]
RPM Database Locked or Corrupted During Updates
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 […]
How to Set Up a WordPress Site on SLES 15
Introduction This tutorial covers How to Set Up a WordPress Site 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: […]
RHEL 9: Apache httpd Returns 403 Forbidden
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 📖 ~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 […]
IBM AIX 7.1 — CVE-2020-4578 — xss — patch and remediation guide
🟡 Medium ⏱ 15–45 min Last verified: 25 May 2026 Affected versions: IBM AIX 7.1 📖 ~4 min read • Source: NVD CVE-2020-4578, IBM Support Bulletin CVE: CVE-2020-4578 NVD summary: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in […]
