🟡 Medium ⏱ 5–30 min Last verified: 25 October 2020 📖 ~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 […]
Port knocking is a method of protecting your services behind a firewall until connection attempts are made to a specific sequence of ports in a certain amount of time. The firewall rules are then modified to allow access to the service and the user can connect as normal. In this article, we will discuss how to implement port knocking to add an extra layer of protection to your SSH daemon in order to dissuade attackers.
MediaWiki is a PHP wiki package, originally intended for use on Wikipedia, which allows anyone to create their own personal wiki site. This tutorial goes through how to set up MediaWiki on a Ubuntu 14.04 Droplet.
Apache Tomcat is a web server and servlet container designed to serve Java applications. Frequently used in production enterprise deployments and for smaller application needs, Tomcat is both flexible and powerful. In this guide, we will discuss how to secure your Ubuntu…
🟠 High ⏱ 15–60 min Last verified: 25 October 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4985-1 Related CVEs: CVE-2020-24511 CVE-2020-24512 CVE-2020-24513 CVE-2020-24489 https://launchpad.net/bugs/1903883 CVE-2020-8695 CVE-2020-8696 CVE-2020-8698 +12 more Upstream summary: It was discovered that some Intel processors may not properly invalidate cache entries used by […]
In this tutorial, we will demonstrate how to use cloud provider API to horizontally scale your server setup. To do this, we will use **DOProxy**, a relatively simple Ruby script that, once configured, provides a command line interface to scale your HTTP application server tier up or down.
🟡 Medium ⏱ 5–30 min Last verified: 24 October 2020 📖 ~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 […]
El autor seleccionó la Free and Open Source Fundpara recibir una donación como parte del programa Write for DOnations. Apache Kafka es un intermediario de mensajes…
🟢 Low ⏱ 5–15 min Last verified: 23 October 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5098-1 Related CVEs: CVE-2020-8244 Upstream summary: It was discovered that bl didn't properly sanitize the inputs. An attacker could use this to leak sensitive information. Table of contents Symptom & […]
🟡 Medium ⏱ 5–30 min Last verified: 23 October 2020 Affected versions: 20.04 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 & […]
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