Syntax: f4f; Default: — Context: location

Syntax: proxy_protocol on | off; Default: proxy_protocol off;

Syntax: scgi_hide_header field; Default: — Context:

Syntax: geoip_city file; Default: — Context:

Syntax: limit_req_status code; Default: limit_req_status 503;

Syntax: google_perftools_profiles file; Default: —

Syntax: image_filter_transparency on|off; Default: image_filter_transparency

Syntax: proxy_ssl_certificate file; Default: — Context:

Syntax: ssl_client_certificate file; Default: — Context:

Syntax: geo [$address] $variable { ... } Default: —