In this tutorial, you’ll use LXD to install two Nginx-based web sites on the same server, each confined to its own container. Then you’ll install HAProxy in a third container which will act as a reverse proxy. You’ll then route traffic to the HAProxy container in order to make both web sites accessible from the Internet.
Props are arguments that you provide to a JSX element in a React application. They look like standard HTML props, but they aren’t predefined and can have many different JavaScript data types, including numbers, strings, functions, arrays, and even other React components. In this tutorial, you’ll create custom components by passing props to your component. After adding props, you will use PropTypes to define the type of data you expect a component to receive.
How to Manage Node.js Versions with NVM on RHEL 7 Managing Node.js versions is one of the most common challenges for developers and system administrators working with JavaScript applications. Different projects often require different Node.js versions—a legacy application might target Node.js 14 while a new microservice targets Node.js 20. Upgrading the system-wide Node.js installation to […]
TLS, or transport layer security, and its predecessor SSL, which stands for secure sockets layer, are web protocols used to wrap normal traffic in a protected, encrypted wrapper. Using this technology, servers can send traffic safely between the server and clients…
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-4694 Related CVEs: CVE-2020-10749 CVE-2020-10756 CVE-2020-14040 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2019:2198-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-18594 CVE-2018-15173 CVE-2021-3712 Upstream summary: nse_libssh2.cc in Nmap 7.70 is subject to a denial of service condition due to a double free when an SSH […]
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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 […]
🟡 Medium ⏱ 5–30 min Last verified: 19 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 […]
🔴 Critical ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 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 […]
Introduction Setting up configure argocd on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure ArgoCD on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]
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