If you are having trouble with a web application sitting behind a reverse proxy, debugging can be facilitated by having your (backend) web-server displaying the headers that it receives. <\/p>\n\n\n\n
<?php\necho \u201c<h1>Headers received from the reverse proxy<\/h1>";\n$headers = getallheaders();\nforeach($headers as $key=>$val){\n echo $key . ': ' . $val . '<br>';\n}\n?><\/code><\/pre><\/div>\n\n\n\nCommand<\/th> parameter 1<\/th> parameter 2<\/th> output<\/th><\/tr><\/thead> proxy_set_header<\/td> X-Real-IP<\/td> $remote_addr;<\/td> IP Address of client<\/td><\/tr> proxy_set_header<\/td> X-Forwarded-For<\/td> $proxy_add_x_forwarded_for;<\/td> IP Address of client<\/td><\/tr> proxy_set_header<\/td> X-Forwarded-Host<\/td> $server_name;<\/td> called vhost<\/td><\/tr> proxy_set_header<\/td> X-Forwarded-Proto<\/td> $scheme;<\/td> https or http<\/td><\/tr> proxy_set_header<\/td> <\/td> <\/td> <\/td><\/tr> <\/td> <\/td> <\/td> <\/td><\/tr> <\/td> <\/td> <\/td> <\/td><\/tr> <\/td> <\/td> <\/td> <\/td><\/tr> <\/td> <\/td> <\/td> <\/td><\/tr> <\/td> <\/td> <\/td> <\/td><\/tr><\/tbody><\/table>Header commands and outputs<\/figcaption><\/figure>\n\n\n\n