Docker Swarm is a feature of Docker that makes it easy to run Docker hosts and containers at scale. A Docker Swarm, or Docker cluster, is made up of one or more Dockerized hosts that function as manager nodes, and any number of…
In this guide, you will configure an active-active MariaDB Galera cluster. For demonstration purposes, you will configure and test three Debian 9 Droplets that will act as nodes in the cluster. MariaDB is an open source relational database system that is fully compatible with the popular MySQL RDBMS system. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.
Der Autor wählte den Free and Open Source Fund, um eine Spende im Rahmen des Programms Write for DOnations zu erhalten. Systemprotokolle sind ein äußerst wichtiger Bestandteil für die Verwaltung…
In this article you’ll build a blog that will make use of a GraphQL server. We’ll build the blog app using Apollo client and Vue. You can grab the GraphQL server so you can follow along with the tutorial.
VNC o Virtual Network Computing es un sistema de conexión que le permite utilizar su teclado y su ratón para interactuar con un entorno de escritorio gráfico en un servidor remoto. Facilita la gestión de archivos, software y configuración en un servidor remoto para usuarios…
How to install Node.js on Ubuntu is one of the most common first steps for developers building backend applications, APIs, real-time services, or full-stack JavaScript projects in 2025–2026. Node.js lets you run JavaScript server-side, and Ubuntu remains one of the most popular Linux distributions for hosting Node applications.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read • Source: OpenBSD 7.6 errata 012_ike Errata topic: Security: ike (All architectures) Issued: April 9, 2025 Upstream summary: iked(8) and isakmpd(8) fix double-free in ecdh mode. Table of contents Symptom & Impact Environment & Reproduction Root […]
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Debian 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 & […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4405-1 Related CVEs: CVE-2020-13645 Upstream summary: It was discovered that glib-networking skipped hostname certificate verification if the application failed to specify the server identity. A remote attacker could use this […]
🟡 Medium ⏱ 5–30 min Last verified: 20 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 […]
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