🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-12672 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 […]
OSSEC is an open-source, host-based intrusion detection system (HIDS) that performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, time-based alerting, and active response. It’s the application to install on your server if you want to keep an eye on what’s happening inside it. In this tutorial you’ll learn how to install OSSEC to monitor the Fedora 21 server it is installed on: a local OSSEC installation.
Many modern DevOps teams are putting more and more infrastructure around the chatroom. One of the main motivations behind this chatroom infrastructure is because of chatroom bots, which DevOps teams use to help get their work done faster and more efficiently. In this tutorial, we’ll walk through the steps to install Lita on your own Ubuntu server, connect it to a IRC channel, and start installing plugins.
The web2py framework is a powerful and easy-to-use tool for quickly developing full-featured Python web applications. With web2py, you can easily develop and manage your applications through the use of an administrative web UI. In this guide, we will demonstrate how to…
Learning the structure of a full HTML CSS website is the key moment that turns beginner tutorials into a real, publishable project — in this overview guide, you’ll get a complete breakdown of the demonstration single-page portfolio/resume website we’re going to build from scratch using only HTML and CSS. The site is organized into 7 clear horizontal sections, uses modern layout techniques (Flexbox, Grid, sticky footer), is fully responsive, and looks professional — ideal for personal portfolios, resumes, freelancers, designers, developers, or small business landing pages in 2025–2026.
In this final tutorial in the series, you will create custom Kibana rules and generate alerts within Kibana's SIEM dashboards. Once you have rules in place and understand where and how to filter Suricata's logs using Kibana, you'll explore how to create and manage cases using Kibana's timeline analysis tools. By the end of this […]
If you need to access your MySQL database from a remote location, it’s important that you do so securely. This guide will demonstrate how to configure MySQL on Ubuntu 18.04 to accept remote connections with SSL/TLS encryption.
In this tutorial, you will build a custom toggle switch component with React. At the end of the tutorial, you will have built a demo React app that uses our custom toggle switch component.
cloud servers have quietly evolved into a robust compute platform suitable for both business and personal applications. Explore the modern Droplet and all that it can do, and learn about sizing, scaling, saving, and securing your Droplet.
Build and deploy a production-ready Flask app with Gunicorn to the cloud provider’s App Platform as the foundation for an Email-Based Receipt Processing Service.
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