🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-202107-12 Related CVEs: CVE-2021-20201 CVE-2020-14355 CVE-2019-3813 CVE-2017-7506 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.14.3-3. Fixed in: 0.15.0-1. Group: AVG-1239. Table of contents Symptom & Impact Environment & Reproduction […]
Introduction This tutorial covers How to Secure Nginx with Let’s Encrypt on SLES 15 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: […]
🟢 Low ⏱ 5–15 min Last verified: 19 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2011-4339 CVE-2020-5208 Upstream summary: ipmievd (aka the IPMI event daemon) in OpenIPMI, as used in the ipmitool package 1.8.11 in Red Hat Enterprise Linux (RHEL) 6, Debian GNU/Linux, […]
🟠 High ⏱ 15–60 min Last verified: 19 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2021-9372 Related CVEs: CVE-2021-33909 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Immutable infrastructure is an infrastructure paradigm in which servers are never modified after they’re deployed. This article explains the conceptual and practical differences between mutable and immutable infrastructure, describes the advantages of using an immutable infrastructure and contextualizes the complications, and gives a high-level overview of the implementation details and necessary components for an immutable infrastructure.
🔴 Critical ⏱ 15–90 min Last verified: 19 September 2021 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2021:2790-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-22930 CVE-2020-8174 CVE-2020-7774 CVE-2021-27290 CVE-2021-32803 CVE-2021-32804 CVE-2019-15604 CVE-2019-15605 +12 more Upstream summary: Node.js before 16.6.0, 14.17.4, and 12.22.4 is vulnerable to a use after free […]
Introduction This guide explains how to Build Grafana Dashboards for FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege […]
MySQL replication is a process that allows you to easily maintain multiple copies of a MySQL data by having them copied automatically from a master to a slave database. This can helpful for many reasons including facilating a backup for the data,a way to analyze it without using the main database, or simply as a means to scale out.
🟠 High ⏱ 5–30 min Last verified: 18 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: Oracle Bug OLRNT-ol8-issues-kernel 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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALBA-2022:2035 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
