Introduction This tutorial demonstrates how to Configure fail2ban on RHEL 10 on RHEL 10. 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 RHEL 10 system with the default AppStream repositories enabled. Prerequisites […]
đźź High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 7 đź“– ~4 min read • Source: Red Hat advisory RHSA RHSA-2026:0926 Related CVEs: CVE-2025-68615 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]
đźź High ⏱ 15–60 min Last verified: 17 November 2025 Affected versions: Ubuntu 14.04 (trusty) đź“– ~4 min read • Source: Ubuntu Security Notice USN-8113-1 Related CVEs: CVE-2025-61144 CVE-2025-61143 CVE-2025-8961 CVE-2025-9165 CVE-2025-9900 CVE-2025-8177 CVE-2025-8851 CVE-2025-8534 +12 more Upstream summary: It was discovered that LibTIFF did not properly handle memory when processing certain images. An […]
Introduction This tutorial covers How to Set Up SSH Two-Factor Authentication on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: […]
Introduction This tutorial covers How to Configure Custom Metrics with Prometheus on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install Prometheus zypper install -y golang-github-prometheus-prometheus Step […]
đź”´ Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Windows Server 2025 đź“– ~4 min read • Source: Microsoft KB5062618 • MSRC update-guide entry Related CVEs: CVE-2025-47980 CVE-2025-55230 CVE-2025-49757 CVE-2025-47971 CVE-2025-47976 CVE-2025-47984 CVE-2025-47985 CVE-2025-47986 +12 more Affected components: Windows Server 2025 Microsoft summary: Exposure of sensitive information to an unauthorized actor […]
Introduction This tutorial covers How to Implement Mandatory Access Control on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper […]
đź”´ Critical ⏱ 5–30 min Last verified: 16 November 2025 Affected versions: Oracle Linux 10 đź“– ~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 […]
🟢 Low ⏱ 5–15 min Last verified: 16 November 2025 Affected versions: FreeBSD 13 đź“– ~4 min read • Source: FreeBSD VuXML VuXML topic: vim — Improper Input Validation in Vim Related CVEs: CVE-2025-27423 Upstream summary: [email protected] reports: Vim is distributed with the tar.vim plugin, that allows easy editing and viewing of (compressed or […]
🟢 Low ⏱ 5–15 min Last verified: 16 November 2025 Affected versions: FreeBSD 12 đź“– ~4 min read • Source: FreeBSD VuXML VuXML topic: libxml2 — Out-of-bounds memory access Related CVEs: CVE-2025-32414 Upstream summary: [email protected] reports: In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API (Python […]
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