iptables is the traditional Linux packet filtering framework. While UFW provides a simplified interface, understanding iptables directly is valuable for advanced firewall rules, NAT, port forwarding, and Docker networking. This guide configures iptables on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with sudo privileges Basic networking […]
đźź High ⏱ 15–60 min Last verified: 14 July 2026 Affected versions: Oracle Linux 8 đź“– ~4 min read • Source: ELSA advisory ELSA-2025-19610 Related CVEs: CVE-2025-11561 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
đźź High ⏱ 15–60 min Last verified: 14 July 2026 Affected versions: CentOS Stream 9 đź“– ~4 min read • Source: AlmaLinux/RHEL advisory ALSA-2025:7410 Related CVEs: CVE-2024-55549 CVE-2025-24855 CVE-2023-40403 Upstream summary: libxslt is a library for transforming XML files into other textual formats (including HTML, plain text, and other XML representations of the underlying […]
đźź High ⏱ 15–60 min Last verified: 14 July 2026 Affected versions: CentOS Stream 9 đź“– ~4 min read • Source: AlmaLinux/RHEL advisory ALSA-2026:7896 Related CVEs: CVE-2026-21710 CVE-2026-26996 CVE-2026-27135 CVE-2026-27904 CVE-2026-1525 CVE-2026-1526 CVE-2026-1527 CVE-2026-1528 +12 more Upstream summary: Node.js is a software development platform for building fast and scalable network applications in the JavaScript […]
đźź High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Gentoo Linux đź“– ~4 min read • Source: Gentoo GLSA GLSA-202506-04 Related CVEs: CVE-2025-26594 CVE-2025-26595 CVE-2025-26596 CVE-2025-26597 CVE-2025-26598 CVE-2025-26599 CVE-2025-26600 CVE-2025-26601 +12 more Upstream summary: Multiple vulnerabilities have been discovered in X.Org X server and XWayland. Please review the CVE identifiers referenced […]
đźź High ⏱ 15–60 min Last verified: 14 July 2026 Affected versions: SLES 16 đź“– ~4 min read • Source: SUSE advisory SUSE-CU-2021:233-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13987 CVE-2020-13988 CVE-2020-17437 CVE-2020-17438 Upstream summary: An issue was discovered in Contiki through 3.0. An Out-of-Bounds Read vulnerability exists in the uIP TCP/IP Stack component […]
Introduction How to Install Loki for Log Aggregation on RHEL 10 on RHEL 10 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 is […]
đźź High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Gentoo Linux đź“– ~4 min read • Source: Gentoo GLSA GLSA-202506-04 Related CVEs: CVE-2025-26594 CVE-2025-26595 CVE-2025-26596 CVE-2025-26597 CVE-2025-26598 CVE-2025-26599 CVE-2025-26600 CVE-2025-26601 +12 more Upstream summary: Multiple vulnerabilities have been discovered in X.Org X server and XWayland. Please review the CVE identifiers referenced […]
đźź High ⏱ 15–60 min Last verified: 14 July 2026 Affected versions: Oracle Linux 8 đź“– ~4 min read • Source: ELSA advisory ELSA-2026-4443 Related CVEs: CVE-2026-26127 CVE-2026-26130 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
đźź High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 đź“– ~4 min read • Source: AlmaLinux ALSA ALSA-2026:12176 Related CVEs: CVE-2026-26007 CVE-2026-30922 CVE-2026-32597 CVE-2026-23490 CVE-2025-66418 CVE-2025-66471 CVE-2026-21441 CVE-2024-47081 +7 more Upstream summary: The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They […]
