🟠 High ⏱ 15–60 min Last verified: 17 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-0820 Related CVEs: CVE-2020-6812 CVE-2020-6806 CVE-2020-6807 CVE-2019-20503 CVE-2020-6811 CVE-2020-6805 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
Introduction How to Manage Packages with DNF 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 […]
🟡 Medium ⏱ 10–30 min Last verified: 17 November 2020 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2018-12126 CVE-2018-3639 CVE-2019-11135 CVE-2019-14607 CVE-2020-0543 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]
Introduction How to Set Up ModSecurity WAF with Apache on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf […]
🟡 Medium ⏱ 10–30 min Last verified: 16 November 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-1605 Related CVEs: CVE-2018-18074 CVE-2018-20852 CVE-2019-16056 CVE-2019-11324 CVE-2018-20060 CVE-2019-11236 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]
🟡 Medium ⏱ 5–30 min Last verified: 16 November 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]
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 workload manager (wlm) on ibm aix 7.1 […]
Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure btrfs snapshots on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Btrfs Snapshots on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]
🟢 Low ⏱ 5–15 min Last verified: 16 November 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4405-1 Related CVEs: CVE-2020-13645 Upstream summary: It was discovered that glib-networking skipped hostname certificate verification if the application failed to specify the server identity. A remote attacker could use this […]
Introduction Deploying configure the system timezone on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]
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