Nginx global Variable 1

Nginx configuration files can be used in the built-in variable starting with the dollar symbol $, also called global variables. Where the values of some of the predefined variables can be changed.

$arg _parameter This variable value is: The value of the variable name PARAMETER parameter in the GET request.

$args this variable equals the parameter in the GET request. For example,foo=123&bar=blahblah; this variable can only be modified

$binary the client address in the form of _remote_addr binary code.

$body the number of bytes transferred to the _bytes_sent page

$content the Content-length field in the _length request header.

$content the Content-type field in the _type request header.

$cookie the value of the _cookie cookie cookie.

$document _root The value specified in the root instruction for the current request.

$document _uri is the same as $uri.

The Host header field in the $host request, or the server name that handles the request (the value of the server_name instruction for the server that handles the request), if the primary header in the request is unavailable or empty. The value is lowercase and does not contain a port.

$hostname machine name using the value of the GetHostName system call

$http the contents of the HTTP request header, the header _header the contents of the HTTP request to lowercase,-to _ (dashes to underscores), for example: $http _user_agent (uaer-agent value), $http _referer ...;

$sent _http_header The contents of the HTTP response header, the header is converted to lowercase in the HTTP response--to _ (dashes to underscores), for example: $sent _http_cache_control, $sent _http_ Content_Type ...;

$is _args If $args is set, the value is "?", otherwise "".

$limit _rate This variable can limit the connection rate.

$nginx _version The Nginx version number that is currently running.

$query _string is the same as $args.

$remote the IP address of the _ADDR client.

$remote the port of the _port client.

$remote _user The user name that has been validated by the Auth Basic module.

$request _filename The file path of the current connection request, generated by the root or alias directive and the URI request.

$request _body this variable (0.7.58+) contains the primary information for the request. It is more meaningful to use location in Proxy_pass or fastcgi_pass directives.

$request the temporary file name of the _body_file client requesting principal information.

$request _completion If the request succeeds, set to "OK", or null if the request is incomplete or not the last part of a series of requests.

$request _method This variable is a client-requested action, usually a get or post.
including 0.8.20 and previous versions, this variable is always the action in main request, and if the current request is a child request, the current requested action is not used.

$request _uri This variable equals the original URI that contains some client request parameters, it cannot be modified, see $uri change or rewrite the URI.

The protocol used by the $scheme, such as HTTP or HTTPS, such as rewrite ^ (. +) $ $scheme://example.com$1 redirect;

$server _addr server address, you can determine this value after a system call is complete, and if you want to bypass the system call, you must specify the address in listen and use the bind parameter.

$server the _name server name.

The port number $server the _port request arrives at the server.

The protocol used by the $server _protocol request, usually http/1.0 or http/1.1.

$uri the current URI in the request (without the request parameter, the parameter is in $args) and differs from the value of the $request_uri passed by the browser, it can be modified by internal redirection or by using the index directive. Does not include protocol and hostname, such as/foo/bar.html

Nginx global Variable 1