Polr is a free and open-source link shortener written in PHP and Lumen. It allows you to quickly host your own URL shortener. It's significant features include a management dashboard, detailed link analytics, and an API. This tutorial will guide you through the process of installing Polr on CentOS 8. This tutorial requires a Vultr Cloud Compute instance with CentOS 8 and root access, and a valid domain name pointing to your server. Polr requires a web server, a MySQL database, and PHP. For......