Introduction How to Install Kotlin 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 reproducible and production-safe. […]
A service mesh is an infrastructure layer that allows you to manage communication between your application’s microservices. As more developers work with microservices, service meshes have evolved to make that work easier and more effective. In this tutorial, we will discuss how service meshes can streamline and simplify the process of working with common components in a microservice architecture.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-42343 Upstream summary: An issue was discovered in the Dask distributed package before 2021.10.0 for Python. Single machine Dask clusters started with dask.distributed.LocalCluster or dask.distributed.Client […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read • Source: OpenBSD 7.6 errata 001_unbound Errata topic: Security: unbound (All architectures) Issued: October 14, 2024 Related CVEs: CVE-2024-8508 Upstream summary: Querying a maliciously constructed DNS zone could result in degraded performance or denial of service. […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-4097 Related CVEs: CVE-2021-30858 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202009-2 Related CVEs: CVE-2020-24654 CVE-2017-5330 Upstream summary: Type: arbitrary filesystem access. Status: Fixed. Affected: 20.08.0-1. Fixed in: 20.08.0-2. Group: AVG-1216. Table of contents Symptom & Impact Environment & Reproduction Root […]
🔴 Critical ⏱ 5–30 min Last verified: 20 May 2026 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 ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: halibut — Segmentation fault, denial of service or possibly other unspecified impact via a crafted text document Related CVEs: CVE-2021-42612 CVE-2021-42613 CVE-2021-42614 Upstream summary: [email protected] reports: CVE-2021-42612: A use after […]
Introduction This tutorial demonstrates how to Configure AlertManager on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system with the default AppStream […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: chocolate-doom — Arbitrary code execution Related CVEs: CVE-2020-14983 Upstream summary: Michal Dardas from LogicalTrust reports: The server in Chocolate Doom 3.0.0 and Crispy Doom 5.8.0 doesn't validate the user-controlled num_players […]
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