🟢 Low ⏱ 5–15 min Last verified: 1 December 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5990-1 Related CVEs: CVE-2019-14697 CVE-2020-28928 Upstream summary: It was discovered that musl did not handle certain i386 math functions properly. An attacker could use this vulnerability to cause a denial […]
Introduction How to Set Up Port Knocking on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]
🟠 High ⏱ 15–60 min Last verified: 1 December 2020 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-CU-2021:599-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-29361 CVE-2020-29363 CVE-2020-29362 Upstream summary: An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in […]
Introduction PowerShell Desired State Configuration (DSC) Pull Server on Windows Server 2016 provides a centralised configuration management service. Target nodes automatically pull their configuration MOF files and report compliance status back, enabling drift detection and automatic remediation at scale. Installing Pull Server Prerequisites Install required features and modules: Install-WindowsFeature DSC-Service, Web-Server -IncludeManagementTools Install-Module xPSDesiredStateConfiguration -Force […]
🟠 High ⏱ 15–60 min Last verified: 1 December 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-0997 Related CVEs: CVE-2019-9636 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟡 Medium ⏱ 10–30 min Last verified: 30 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-2830 Related CVEs: CVE-2022-46340 CVE-2022-46343 CVE-2022-4283 CVE-2022-46341 CVE-2022-46344 CVE-2022-46342 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
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 set up strongswan ikev2 vpn on ibm aix 7.1 […]
Introduction This tutorial demonstrates how to Install Prometheus and Grafana 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 […]
How to Set Up Software RAID with mdadm on RHEL 7 Software RAID (Redundant Array of Independent Disks) allows you to combine multiple physical disks into a single logical device that provides redundancy, improved performance, or both — without requiring a dedicated hardware RAID controller. On RHEL 7, the mdadm utility is the standard tool […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202003-51 Related CVEs: CVE-2020-8955 CVE-2020-9759 CVE-2020-9760 Upstream summary: Multiple vulnerabilities have been discovered in WeeChat. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & […]
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