In this guide I will walk you through the process of turning an old laptop into an always-on server. You can use it to run web applications in the comfort of your own home or office - no "cloud" required. Together we will configure the entire server: you will learn how to install CentOS, Apache, PHP and MySQL (or MariaDB) and WordPress. I will show you how you can reach your server from other computers on the network and how to create regular backups too. This book is perfect for the Linux newbie and those who want to get started with web applications without spending money "in the cloud" (which is - in my personal opinion - THE WORST expression for describing remote computers).