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

Syntax: proxy_store_access users:permissions ...; Default: proxy_store_access user:rw; Context: http, server, location Sets access permissions for newly created files and directories, e.g.: proxy_store_access user:rw group:rw all:r; If any group or all access permissions are specified then user permissions may be omitted: proxy_store_access group:rw all:r;

Syntax: imap_client_buffer size; Default: imap_client_buffer 4k|8k; Context: mail, server Sets the IMAP commands read buffer size. By default, the buffer size is equal to one memory page. This is either 4K or 8K, depending on a platform.

Syntax: memcached_connect_timeout time; Default: memcached_connect_timeout 60s; Context: http, server, location Defines a timeout for establishing a connection with a memcached server. It should be noted that this timeout cannot usually exceed 75 seconds.

Syntax: proxy_ssl on | off; Default: proxy_ssl off; Context: stream, server Enables the SSL/TLS protocol for connections to a proxied server.

Syntax: mp4; Default: — Context: location Turns on module processing in a surrounding location.

Syntax: split_clients string $variable { ... } Default: — Context: stream Creates a variable for A/B testing, for example: split_clients "${remote_addr}AAA" $variant { 0.5% .one; 2.0% .two; * ""; } The value of the original string is hashed using MurmurHash2. In the example given, hash values from 0 to 21474835 (0.5%) correspond to the value ".one" of the $variant variable, hash v

Syntax: uwsgi_hide_header field; Default: — Context: http, server, location By default, nginx does not pass the header fields “Status” and “X-Accel-...” from the response of a uwsgi server to a client. The uwsgi_hide_header directive sets additional fields that will not be passed. If, on the contrary, the passing of fields needs to be permitted, the uwsgi_pass_header directive can be used.

Syntax: server { ... } Default: — Context: mail Sets the configuration for a server.

Syntax: ssl_protocols [SSLv2] [SSLv3] [TLSv1] [TLSv1.1] [TLSv1.2]; Default: ssl_protocols TLSv1 TLSv1.1 TLSv1.2; Context: mail, server Enables the specified protocols. The TLSv1.1 and TLSv1.2 parameters work only when the OpenSSL library of version 1.0.1 or higher is used. The TLSv1.1 and TLSv1.2 parameters are supported starting from versions 1.1.13 and 1.0.12 so when the OpenSSL version 1.0.1 or higher is used on older nginx versions, these protocols work,