Posts

Unable to open primary script

Published on September 6, 2020

The Ultimate Fix for ‘Unable to Open Primary Script Permission Denied’ on CentOS 8 (Solving the SELinux Headache)

Welcome back to Darren’s Tech Tutorials! If you’ve ever tried setting up a complex web application—like Moodle, WordPress, or any custom PHP site—on a fresh CentOS 8 server, you’ve likely run into a frustrating wall of error messages.

How to ensure a service or program starts on boot on Centos Linux

Published on August 29, 2020

Stop Services from Breaking on Reboot: How to Auto-Start Any Program in Linux

Hi there! This is Darren O’Neill from Darren’s Tech Tutorials, and today we are tackling one of the most common frustrations in server management: ensuring your essential services actually start when your Linux machine boots up.

Java Keytool Tutorial: How to export a Certificate from a Java Keystore

Published on August 3, 2020

Mastering Java Keytool: How to Export a Certificate from a Keystore (Quick Guide)

Hi there, I’m Darren O’Neill from Darren’s Tech Tutorials, and I’m excited to dive into one of the most useful utilities in the Java ecosystem: the keytool.

Can't SSH into VirtualBox Machine

Published on July 26, 2020

VirtualBox SSH Fix: How to Connect to Your VM (Even if You Use CentOS!)

Welcome back to Darren’s Tech Tutorials!

google chrome install on mac quick

Published on July 13, 2020

Super Easy Guide: How to Install Google Chrome on macOS in Minutes!

Welcome back to Darren’s Tech Tutorials!

If you’ve just set up a new Mac or are tired of using Safari as your primary browser, you’re in the right place. Google Chrome remains one of the fastest, most popular, and most feature-rich web browsers available today. Whether you need seamless syncing with your other Google accounts or simply prefer Chrome’s development tools, getting it installed on macOS is surprisingly quick.

How to Set up SQL Server 2019 on AWS

Published on June 14, 2020

Bypass RDS! Installing SQL Server 2019 Standard Edition on AWS EC2 (Beginner Tutorial)

Welcome to Darren’s Tech Tutorials!

Hey there, tech fans! Darren here, and today we are tackling a critical and very common challenge in the AWS world: deploying the latest database technology when AWS doesn’t quite have it ready in their managed services yet.

Sound not working on mac resolved

Published on May 30, 2020

Mac Sound Not Working? The Ultimate Quick Fix for No Audio Output!

Hi everyone, and welcome back to Darren’s Tech Tutorials!

How to Install CentOS 8 on VirtualBox 2020

Published on May 23, 2020

How to Install CentOS 8 on VirtualBox: The Complete Step-by-Step Guide!

Welcome back to Darren’s Tech Tutorials! If you’re looking for a powerful, stable Linux environment for development, server testing, or just learning, CentOS is a fantastic choice. The best part? You don’t need a dedicated physical machine to get started!

VirtualBox mouse not working with screen recorder

Published on May 19, 2020

VirtualBox Mouse Integration Broken? The Quick Fix When Screen Recording!

Stop the Madness: Fixing the Dreaded VirtualBox Mouse Jump

Hey tech enthusiasts, Darren here!

How to Install OpenJDK on Windows

Published on May 19, 2020

Mastering Java: Install OpenJDK 14 on Windows 10 (The Easy Step-by-Step Guide)

Welcome to the World of OpenJDK 14!

If you’re ready to dive into Java development, you need a robust, reliable Java Development Kit (JDK) installed on your system. Today, we’re focusing on the highly efficient and widely used OpenJDK 14, and we’ll get it running perfectly on your Windows 10 machine.