Virtualization
How to Change UUID of a VirtualBox VDI File on Windows
If you are using VirtualBox to manage virtual machines, you might encounter an error when trying to add a new…
Linux Tutorials
How to Configure Sudoers with NOPASSWD
Configuring your system to allow certain commands to run without needing to enter a password can be very useful. This…
General Articles
How to Deploy Laravel on Ubuntu: Step-by-Step Guide
As of today, Laravel is the top choice for PHP developers to build APIs and web apps. When your app…
Ecommerce
How to Install Magento2 on Ubuntu: Step-by-Step [2024]
Magento is one of the most popular open-source e-commerce platforms available today. It offers a rich set of features that…
General Articles
(Resolved) Open /etc/postfix/main.cf: Permission denied
Recently, I encountered an issue on one of my mail servers where the Postfix mail system failed to send email.…
Windows Tutorials
How to Forcefully Terminate a Windows Service
In Windows, sometimes a service may become unresponsive or stuck and cannot be stopped using the usual net stop or…
General Articles
How to Replace First Line in a File using Sed
Sometimes, you need to replace content of the first line of a file in your Linux system. This might be…
Linux Performance & Optimization
How to Change Swapfile Size in Ubuntu
In this article, we will talk about what a swap file is, the different types of swap, and how to…
General Articles
Terraform Multiple Choice Questions (MCQ)
Welcome to the Terraform Multiple Choice Questions (MCQ). This quiz is designed to help you test your knowledge of Terraform,…
General Articles
“Net::SSLeay and IO::Socket::SSL” Installation on Ubuntu
Recently, I installed the sendemail program on my Ubuntu server. When I tried to send an email over SMTP, I…