<https://labsfabs.com/como-a/linux/como-instalar-el-servidor-web-nginx-en-ubuntu-18-04/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://labsfabs.com/como-a/linux/como-instalar-el-servidor-web-nginx-en-ubuntu-18-04/>