$_SERVER['REMOTE_ADDR'] = 35.171.164.78
gethostbyaddr($_SERVER['REMOTE_ADDR']) = ec2-35-171-164-78.compute-1.amazonaws.com

$_SERVER['HTTP_X_FORWARDED_FOR'] = 
gethostbyaddr($_SERVER['HTTP_X_FORWARDED_FOR']) = 
$_SERVER['HTTP_VIA'] = 

$_SERVER['HTTP_USER_AGENT'] = CCBot/2.0 (https://commoncrawl.org/faq/)