March 2021 - Page 33 of 69

Oracle Linux 8 — libfastjson — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libfastjson — vulnerability — patch and remediation guide (ELSA-2023-6976)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6976 Related CVEs: CVE-2020-12762 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Set Up a GraphQL Server in Node.js with Apollo Server and Sequelize — step-by-step Databases tutorial on Progressive Robot

How To Set Up a GraphQL Server in Node.js with Apollo Server and Sequelize

GraphQL is a specification and therefore language agnostic. When it comes GraphQL development with Node.js, there are various options available ranging from `graphql-js`, `express-graphql`, to `apollo-server`. In this tutorial, you will get a fully featured GraphQL server up and running in Node.js with Apollo Server. We will also see how to integrate a database with a GraphQL server using Sequelize.

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How to Set Up ArgoCD for GitOps on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up ArgoCD for GitOps on FreeBSD 12

Introduction How to Set Up ArgoCD for GitOps on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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How To Install Linux, Apache, MySQL, PHP (LAMP) stack On CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install Linux, Apache, MySQL, PHP (LAMP) stack On CentOS 7

In this guide, we’ll get a LAMP stack installed on an CentOS 7 VPS. A “LAMP” stack is a group of open source software that is typically installed together to enable a server to host dynamic websites and web apps. This term is actually an acronym which represents the **L**inux operating system, with the **A**pache web server. The site data is stored in a **M**ySQL database (using MariaDB), and dynamic content is processed by **P**HP.

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How to Deploy to Kubernetes using Argo CD and GitOps — step-by-step Kubernetes tutorial on Progressive Robot

How to Deploy to Kubernetes using Argo CD and GitOps

In this tutorial, you will learn to use [Argo CD](https://argoproj.github.io/argo-cd), a declarative Continuous Delivery tool. Argo CD provides Continuous Delivery tooling that automatically synchronizes and deploys your application whenever a change is made in your GitHub repository. By managing the deployment and lifecycle of an application, it provides solutions for version control, configurations, and application definitions in Kubernetes environments.

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Oracle Linux 8 — systemd — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — systemd — vulnerability — patch and remediation guide (ELSA-2021-2717)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2717 Related CVEs: CVE-2021-33910 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Create a SSL Certificate on Apache for CentOS 6 — step-by-step Linux tutorial on Progressive Robot

How To Create a SSL Certificate on Apache for CentOS 6

This tutorial explains how to create a self-signed SSL certificate, how to add it to your server, and how to configure the SSL file to display the certificate to the world. A SSL certificate is a way to encrypt a site’s information and create a more secure connection. Certificate Authorities can issue SSL certificates that verify the server’s details while a self-signed certificate has no 3rd party corroboration. This tutorial is written for Apache on a Centos server.

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How to Set Up a LAMP Stack on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a LAMP Stack on FreeBSD 12

Introduction How to Set Up a LAMP Stack on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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