Syntax: image_filter_buffer size; Default: image_filter_buffer 1M; Context: http, server, location Sets the maximum size of the buffer used for reading images. When the size is exceeded the server returns error 415 (Unsupported Media Type).

Syntax: proxy_send_timeout time; Default: proxy_send_timeout 60s; Context: http, server, location Sets a timeout for transmitting a request to the proxied server. The timeout is set only between two successive write operations, not for the transmission of the whole request. If the proxied server does not receive anything within this time, the connection is closed.

Syntax: timer_resolution interval; Default: — Context: main Reduces timer resolution in worker processes, thus reducing the number of gettimeofday() system calls made. By default, gettimeofday() is called each time a kernel event is received. With reduced resolution, gettimeofday() is only called once per specified interval. Example: timer_resolution 100ms; Internal implementation of the interval depends on the method used: the EVFILT_TIMER filter if kqueue is used; timer

Syntax: deny address | CIDR | unix: | all; Default: — Context: http, server, location, limit_except Denies access for the specified network or address. If the special value unix: is specified (1.5.1), denies access for all UNIX-domain sockets.

Syntax: xclient on | off; Default: xclient on; Context: mail, server Enables or disables the passing of the XCLIENT command with client parameters when connecting to the SMTP backend. With XCLIENT, the MTA is able to write client information to the log and apply various limitations based on this data. If XCLIENT is enabled then nginx passes the following commands when connecting to the backend: EHLO with the server name XCLIENT EHLO or HELO, as passed by the client

Syntax: uwsgi_cache_max_range_offset number; Default: — Context: http, server, location This directive appeared in version 1.11.6. Sets an offset in bytes for byte-range requests. If the range is beyond the offset, the range request will be passed to the uwsgi server and the response will not be cached.

Syntax: limit_conn_zone key zone=name:size; Default: — Context: stream Sets parameters for a shared memory zone that will keep states for various keys. In particular, the state includes the current number of connections. The key can contain text, variables, and their combinations (1.11.2). Connections with an empty key value are not accounted. Usage example: limit_conn_zone $binary_remote_addr zone=addr:10m; Here, the key is a client IP address set by the $binary_remot

Syntax: location [ = | ~ | ~* | ^~ ] uri { ... }location @name { ... } Default: — Context: server, location Sets configuration depending on a request URI. The matching is performed against a normalized URI, after decoding the text encoded in the “%XX” form, resolving references to relative path components “.” and “..”, and possible compression of two or more adjacent slashes into a single slash. A location can either be defined by a prefix string, or by a re

Syntax: uwsgi_force_ranges on | off; Default: uwsgi_force_ranges off; Context: http, server, location This directive appeared in version 1.7.7. Enables byte-range support for both cached and uncached responses from the uwsgi server regardless of the “Accept-Ranges” field in these responses.

Syntax: autoindex_exact_size on | off; Default: autoindex_exact_size on; Context: http, server, location For the HTML format, specifies whether exact file sizes should be output in the directory listing, or rather rounded to kilobytes, megabytes, and gigabytes.