Also fix references from config.yml to configuration.yml
This reverts commit fccb55f714. Avoid exposing Authelia to more attacks by only keeping X-Forwarded-For.
fccb55f714
Authelia needs to know with what IP was the request originating in order to apply network based ACL rules. Authelia already supported X-Forwarded-For but X-Real-IP is another way to define it. It takes precedence over X-Forwarded-For.
https://github.com/golang-standards/project-layout