Introduction Setting up configure spf and dmarc on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure SPF and DMARC on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to […]
Matomo is an open-source, self-hosted web analytics application written in PHP. In this tutorial you will install Matomo and a MariaDB database using Docker Compose, then install Nginx to act as a reverse proxy for the Matomo app. Finally, you will enable secure HTTPS connections by using Certbot to download and configure SSL certificates from the Let’s Encrypt Certificate Authority.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2019:3455 Upstream summary: GCC Toolset is a compiler toolset that provides recent versions of development tools. GCC Toolset is an Application Stream packaged as a Software Collection. This enhancement update adds the […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2020:1766 Related CVEs: CVE-2018-20337 CVE-2019-12447 CVE-2019-12448 CVE-2019-12449 CVE-2019-3825 Upstream summary: GNOME is the default desktop environment of AlmaLinux. Security Fix(es): * LibRaw: stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp (CVE-2018-20337) […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-1627 Related CVEs: CVE-2020-24332 CVE-2020-24331 CVE-2020-24330 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: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2022:23018-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-20291 CVE-2021-3602 Upstream summary: A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2022:1277-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-19566 CVE-2018-19568 CVE-2018-5805 CVE-2018-5806 CVE-2021-3624 CVE-2017-13735 CVE-2017-14608 CVE-2018-19655 +1 more Upstream summary: A heap buffer over-read in parse_tiff_ifd in dcraw through 9.28 could be used […]
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 References & Further […]
Introduction This tutorial covers How to Configure SLES 15 for Edge Computing on SLES 15. SLES 15 (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 15 system is up to date: zypper refresh […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory Related CVEs: CVE-2019-12400 CVE-2021-40690 Upstream summary: In version 2.0.3 Apache Santuario XML Security for Java, a caching mechanism was introduced to speed up creating new XML documents using a static pool […]
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