🟡 Medium ⏱ 10–30 min Last verified: 22 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-1764 Related CVEs: CVE-2018-20852 CVE-2019-16056 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.9.16-r2 📖 ~4 min read • Source: Alpine secdb entry — x11vnc 0.9.16-r2 Related CVEs: CVE-2020-29074 Upstream summary: Alpine community repository for vedge ships x11vnc 0.9.16-r2 which addresses CVE-2020-29074. Table of contents Symptom & Impact Environment […]
🟡 Medium ⏱ 5–30 min Last verified: 22 January 2021 Affected versions: 20.04 📖 ~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 […]
🟡 Medium ⏱ 5–30 min Last verified: 22 January 2021 Affected versions: Windows Server 2016 📖 ~2 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 Oracle Linux 8 ships with a stable, security-hardened base that makes deploying secure nginx with let’s encrypt on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Secure Nginx with Let’s Encrypt on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]
🟡 Medium ⏱ 15–45 min Last verified: 22 January 2021 Affected versions: IBM AIX 7.2 Affected: 7.1, 7.2, 7.3 📖 ~4 min read • Source: NVD CVE-2021-38955, IBM Support Bulletin CVE: CVE-2021-38955 NVD summary: IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a local user with elevated privileges to cause a denial […]
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 numa_node_info for numa topology on ibm aix 7.2 […]
How to Configure NTLM Authentication on Windows Server 2012 R2 NT LAN Manager (NTLM) is a challenge-response authentication protocol that predates Kerberos in Windows environments. While Kerberos is the preferred protocol for domain authentication, NTLM remains in use for several scenarios: authentication to servers by IP address rather than FQDN, workgroup authentication, legacy applications, and […]
🟢 Low ⏱ 5–15 min Last verified: 22 January 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5188-1 Related CVEs: CVE-2021-44225 CVE-2018-19115 Upstream summary: It was discovered that Keepalived incorrectly handled certain messages. An attacker could possibly use this issue to access-control bypass. Table of contents Symptom […]
Buildah is a Red Hat–sponsored command-line tool for building OCI-compliant container images without requiring a Docker daemon or root privileges. It ships in the default RHEL 8 AppStream repository alongside Podman, making it a natural fit for secure, rootless CI/CD pipelines. In this tutorial you will install Buildah and Podman on RHEL 8, build images […]
