🟡 Medium ⏱ 5–30 min Last verified: 11 March 2021 Affected versions: Ubuntu 16.04 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 […]
🟡 Medium ⏱ 5–30 min Last verified: 11 March 2021 Affected versions: Windows Server 2019 📖 ~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 […]
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 use cfgmgr to configure new devices on ibm aix […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2LIVEPATCH-2021-040 Related CVEs: CVE-2021-3347 CVE-2020-28374 Upstream summary: A flaw was found in the Linux kernel. A use-after-free memory flaw in the Fast Userspace Mutexes functionality allowing a local user to […]
How to Configure IPsec Policies on Windows Server 2012 R2 Internet Protocol Security (IPsec) provides cryptographic authentication and encryption at the IP layer, securing network communications between servers without requiring changes to applications. On Windows Server 2012 R2, IPsec policies can be configured to require encrypted communications between specific servers, authenticate traffic between network segments, […]
Introduction This tutorial demonstrates how to Configure Harbor Container Registry on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system with the […]
Introduction This guide explains how to Install Keepalived for High Availability 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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202103-26 Related CVEs: CVE-2021-26826 CVE-2021-26825 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 3.2.3-1. Fixed in: 3.2.3-2. Group: AVG-1544. Table of contents Symptom & Impact Environment & Reproduction Root […]
🟡 Medium ⏱ 10–30 min Last verified: 11 March 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6334-1 Related CVEs: CVE-2020-6097 CVE-2021-41054 CVE-2021-46671 CVE-2019-11365 CVE-2019-11366 Upstream summary: Peter Wang discovered that atftp did not properly manage certain inputs. A remote attacker could send a specially crafted tftp […]
🟠 High ⏱ 15–60 min Last verified: 11 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-9151 Related CVEs: CVE-2021-3450 CVE-2021-3449 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
