How to Add User to Sudoers in Debian-Based Linux

During your continued usage of an Ubuntu or Debian-based operating system environment, you probably encountered terminal-bound errors like “permission denied” or something like “user is not in the sudoers file”. Such circumstances can be frustrating

How to Clone Virtual Machine in VirtualBox

Installing a fresh operating system on VirtualBox is easy and can be done in a short time. After that, there are so many steps like installing packages, hardening the OS, updating drivers, configuring development environments,

How to Host a Website on NGINX Web Server

NGINX (pronounced as Engine-X) is a free and open-source web server software, load balancer, and reverse proxy optimized for very high performance and stability. NGINX offers low memory usage and high concurrency — which is