Configuration management systems are designed to make controlling large numbers of servers easy for administrators and operations teams. They allow you to control many different systems in an automated way from one central location. Ansible is a simple configuration management system.
¿Quiere acceder a Internet de forma segura desde tu teléfono inteligente o portátil cuando está conectado a una red no confiable como la WiFi de un hotel o cafetería? Una Red Privada Virtual (VPN) le permite atravesar…
🟠 High ⏱ 5–30 min Last verified: 26 December 2019 Affected versions: 16.04 LTS 📖 ~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 & […]
OrientDB is a multi-model NoSQL database with support for graph and document databases. It is a Java application and can run on any operating system. It’s also fully ACID-complaint with support for multi-master clustering and replication, allowing easy horizontal scaling. In this tutorial, you will set up a three-node cluster with two master nodes and one replica node using the community edition of OrientDB.
O Nginx é um dos servidores web mais populares no mundo e é responsável por hospedar alguns dos maiores e mais acessados sites na internet. Ele possui mais facilidades de recursos do que o Apache em muitos casos e pode ser utilizado como servidor web ou proxy reverso. Neste…
🟢 Low ⏱ 5–15 min Last verified: 23 December 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6035-1 Related CVEs: CVE-2019-7443 Upstream summary: It was discovered that KAuth incorrectly handled some configuration parameters with specially crafted arbitrary types. An attacker could possibly use this issue to cause […]
This tutorial provides a high-level overview of Software-Defined Networking (SDN), a method for producing a dynamic network fabric whose existence is entirely made up of software. By following this guide, you will set up your own software-defined network and create a VPN using ZeroTier One, an open-source application with a web-based user interface.
🟡 Medium ⏱ 10–30 min Last verified: 21 December 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4194-1 Related CVEs: CVE-2019-3466 CVE-2016-1255 CVE-2017-8806 Upstream summary: Rich Mirch discovered that the postgresql-common pg_ctlcluster script incorrectly handled directory creation. A local attacker could possibly use this issue to escalate […]
🟡 Medium ⏱ 5–30 min Last verified: 20 December 2019 📖 ~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 […]
🟢 Low ⏱ 5–15 min Last verified: 20 December 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4523-1 Related CVEs: CVE-2019-9656 Upstream summary: It was discovered that LibOFX did not properly check for errors in certain situations, leading to a NULL pointer dereference. A remote attacker could […]
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