No podemos acceder a nuestro Linode y vemos los siguientes errores en nuestros registros de arranque: 502 Bad Gateway nginx/1.14.0 (Ubuntu)

A 502 error is a relatively generic error message indicating that your web server is not accessible. There are a few things you can do to determine what the potential cause may be. These resources may help you narrow down what is causing the 502 error:

How can I fix a 502 bad gateway?

How to resolve 502 bad gateway

Depending on where the error is originating, you may need to restart a service, check your Linode's networking, or change some configurations.