🔴 Critical ⏱ 5–30 min Last verified: 16 March 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~1 min read Table of contents Problem Summary Symptoms Diagnostics Root Cause Primary Fix Verification Prevention Rollback Automation Command Reference Escalation Related Notes Problem Summary rpm/dnf transactions fail because rpmdb is inconsistent or locked. Symptoms Messages include […]
🟠 High ⏱ 15–60 min Last verified: 16 March 2026 Affected versions: SLES 16 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2020:0801-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-1000231 CVE-2011-3581 CVE-2017-1000232 CVE-2020-19860 CVE-2020-19861 Upstream summary: A double-free vulnerability in parse.c in ldns 1.7.0 have unspecified impact and attack vectors. Table of contents Symptom […]
🟠 High ⏱ 5–30 min Last verified: 15 March 2026 Affected versions: RHEL 10 📖 ~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 & […]
🟡 Medium ⏱ 5–30 min Last verified: 14 March 2026 Affected versions: FreeBSD 15 📖 ~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 & […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying monitor mariadb performance with mytop both straightforward and auditable. This tutorial covers the complete procedure for how to Monitor MariaDB Performance with mytop on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]
🟢 Low ⏱ 5–15 min Last verified: 13 March 2026 Affected versions: FreeBSD 15 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: mDNSResponder — corrupted stack crash when parsing bad resolv.conf Upstream summary: Juli Mallett reports: mdnsd will crash on some systems with a corrupt stack and once that's fixed it will […]
Prometheus AlertManager is a standalone component of the Prometheus monitoring stack responsible for deduplicating, grouping, routing, and dispatching alerts to notification channels such as Slack, email, and PagerDuty. While Prometheus evaluates alerting rules and fires alerts, it is AlertManager that decides who gets notified, when, and how — preventing alert storms and on-call fatigue through […]
Introduction How to Install AIDE for File Integrity 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 […]
Introduction How to Configure Server Blocks in Nginx 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 […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2026:1826-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-2291 CVE-2026-4890 CVE-2026-4892 CVE-2026-5172 CVE-2026-6507 CVE-2023-49441 CVE-2020-25681 CVE-2020-25683 +12 more Upstream summary: dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing […]
