🟡 Medium ⏱ 5–30 min Last verified: 24 October 2025 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 & […]
Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up install promtail on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the resulting configuration will persist […]
An introduction to working with Ubuntu, a popular Linux distribution open-source operating system that’s operated by Canonical.
🟠 High ⏱ 15–60 min Last verified: 24 October 2025 Affected versions: CentOS Stream 10 📖 ~4 min read • Source: AlmaLinux/RHEL advisory ALSA-2026:3297 Related CVEs: CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 CVE-2025-47913 CVE-2025-52881 CVE-2025-58183 Upstream summary: The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create […]
ProxySQL is an open-source MySQL proxy server which can improve performance by distributing traffic among a pool of multiple database servers and also improve availability by automatically failing over to a standby if a database server fails. In this guide, you will set up ProxySQL as a load balancer for multiple MySQL servers with automatic failover.
🔴 Critical ⏱ 15–90 min Last verified: 24 October 2025 Affected versions: SLES 12 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2023:0453-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-20032 CVE-2025-20260 CVE-2024-20505 CVE-2024-20380 CVE-2023-40477 CVE-2023-20197 CVE-2022-20771 CVE-2022-20785 +12 more Upstream summary: On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was […]
In this article, we will discuss how to install and use “screen”, a tool that allows you to manage multiple shell sessions inside a single terminal. The screen program is very useful for multi-tasking in an ssh environment, due to its ability to resume terminal sessions and perform multiple-concurrent tasks.
Introduction Deploying configure chrony for ntp time sync on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, […]
Configuration management systems are designed to make controlling large numbers of servers accessible for admins and operations teams. While there are many popular configuration management systems available for Linux systems, they are often more complex than many people want or need. Ansible is a great alternative to these options because it has a much smaller overhead to get started.
🟠 High ⏱ 5–30 min Last verified: 23 October 2025 Affected versions: CentOS Stream 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 […]
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