Syntax: proxy_ssl_crl file; Default: — Context: http, server, location This directive appeared in version 1.7.0. Specifies a file with revoked certificates (CRL) in the PEM format used to verify the certificate of the proxied HTTPS server.

Syntax: fastcgi_cache_lock on | off; Default: fastcgi_cache_lock off; Context: http, server, location This directive appeared in version 1.1.12. When enabled, only one request at a time will be allowed to populate a new cache element identified according to the fastcgi_cache_key directive by passing a request to a FastCGI server. Other requests of the same cache element will either wait for a response to appear in the cache or the cache lock for this element to be released, up to

Syntax: image_filter off;image_filter test;image_filter size;image_filter rotate 90 | 180 | 270;image_filter resize width height;image_filter crop width height; Default: image_filter off; Context: location Sets the type of transformation to perform on images: off turns off module processing in a surrounding location. test ensures that responses are images in either JPEG, GIF, PNG, or WebP format. Otherwise, the 415 (Unsupported Media Type)

Syntax: xslt_stylesheet stylesheet [parameter=value ...]; Default: — Context: location Defines the XSLT stylesheet and its optional parameters. A stylesheet is compiled at the configuration stage. Parameters can either be specified separately, or grouped in a single line using the “:” delimiter. If a parameter includes the “:” character, it should be escaped as “%3A”. Also, libxslt requires to enclose parameters that contain non-alphanumeric characters into single or dou

Syntax: uwsgi_cache_valid [code ...] time; Default: — Context: http, server, location Sets caching time for different response codes. For example, the following directives uwsgi_cache_valid 200 302 10m; uwsgi_cache_valid 404 1m; set 10 minutes of caching for responses with codes 200 and 302 and 1 minute for responses with code 404. If only caching time is specified uwsgi_cache_valid 5m; then only 200, 301, and 302 responses are cached. In addition, the any paramete

Syntax: limit_rate_after size; Default: limit_rate_after 0; Context: http, server, location, if in location This directive appeared in version 0.8.0. Sets the initial amount after which the further transmission of a response to a client will be rate limited. Example: location /flv/ { flv; limit_rate_after 500k; limit_rate 50k; }

Syntax: state file; Default: — Context: upstream This directive appeared in version 1.9.7. Specifies a file that keeps the state of the dynamically configurable group. Examples: state /var/lib/nginx/state/servers.conf; # path for Linux state /var/db/nginx/state/servers.conf; # path for FreeBSD The state is currently limited to the list of servers with their parameters. The file is read when parsing the configuration and is updated each time the upstream configuration is cha

Syntax: status_format json;status_format jsonp [callback]; Default: status_format json; Context: http, server, location By default, status information is output in the JSON format. Alternatively, data may be output as JSONP. The callback parameter specifies the name of a callback function. The value can contain variables. If parameter is omitted, or the computed value is an empty string, then “ngx_status_jsonp_callback” is used.

Syntax: use method; Default: — Context: events Specifies the connection processing method to use. There is normally no need to specify it explicitly, because nginx will by default use the most efficient method.

Syntax: userid_domain name | none; Default: userid_domain none; Context: http, server, location Defines a domain for which the cookie is set. The none parameter disables setting of a domain for the cookie.