How To Install LAMP Stack (Apache, MySQL, PHP) on Ubuntu
Learn how to deploy a production-grade LAMP stack on Ubuntu 20.04 or 22.04. This guide walks through the optimised installation of Apache, MySQL, and PHP.
Oracle Linux 8 — pki-core:10.6 — vulnerability — patch and remediation guide (ELSA-2021-2235)
🟠 High ⏱ 15–60 min Last verified: 1 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-2235 Related CVEs: CVE-2021-3551 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Arch Linux — libx11 — vulnerability — 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-202105-12 Related CVEs: CVE-2021-31535 Upstream summary: Type: insufficient validation. Status: Fixed. Affected: 1.7.0-4. Fixed in: 1.7.1-1. Group: AVG-1968. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]
FreeBSD 13 — apache+mod_ssl+mod_snmp+mod_accel+ipv — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 30 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: apache — Prevent chunk-size integer overflow on platforms where sizeof(int) < sizeof(long) Related CVEs: CVE-2005-2088 CVE-2005-3352 CVE-2006-3747 Upstream summary: Apache ChangeLog reports: Integer overflow in the ap_proxy_send_fb function in proxy/proxy_util.c […]
Oracle Linux 8 — mailman:2.1 — security and stability fixes — required update (ELSA-2020-4667)
🟡 Medium ⏱ 10–30 min Last verified: 30 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-4667 Related CVEs: CVE-2020-12137 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
FreeBSD 13 — zathura-pdf-mupdf — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 30 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: mupdf — multiple vulnerabilities Related CVEs: CVE-2016-6265 CVE-2016-6525 Upstream summary: Tobias Kortkamp reports: Heap-based buffer overflow in the pdf_load_mesh_params function in pdf/pdf-shade.c in MuPDF allows remote attackers to cause a […]
Service Fails to Start After Package Upgrade
🟠 High ⏱ 5–30 min Last verified: 30 June 2021 Affected versions: Debian 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 & […]
FreeBSD 13 — librsync — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 30 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: librsync — collision vulnerability Related CVEs: CVE-2014-8242 Upstream summary: Michael Samuel reports: librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers […]
Ubuntu 16.04 Bluetooth device not detected
🟡 Medium ⏱ 5–30 min Last verified: 30 June 2021 📖 ~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 Configure Prometheus AlertManager on FreeBSD 12
Introduction This guide explains how to Configure Prometheus AlertManager on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege […]
