Syntax: proxy_cache_bypass string ...; Default: — Context: http, server, location Defines conditions under which the response will not be taken from a cache. If at least one value of the string parameters is not empty and is not equal to “0” then the response will not be taken from the cache: proxy_cache_bypass $cookie_nocache $arg_nocache$arg_comment; proxy_cache_bypass $http_pragma $http_authorization; Can be used along with the proxy_no_cache directive.

Syntax: proxy_cache zone | off; Default: proxy_cache off; Context: http, server, location Defines a shared memory zone used for caching. The same zone can be used in several places. Parameter value can contain variables (1.7.9). The off parameter disables caching inherited from the previous configuration level.

Syntax: proxy_busy_buffers_size size; Default: proxy_busy_buffers_size 8k|16k; Context: http, server, location When buffering of responses from the proxied server is enabled, limits the total size of buffers that can be busy sending a response to the client while the response is not yet fully read. In the meantime, the rest of the buffers can be used for reading the response and, if needed, buffering part of the response to a temporary file. By default, size is limited by the size

Syntax: proxy_buffer_size size; Default: proxy_buffer_size 16k; Context: stream, server This directive appeared in version 1.9.4. Sets the size of the buffer used for reading data from the proxied server. Also sets the size of the buffer used for reading data from the client.

Syntax: proxy_buffer_size size; Default: proxy_buffer_size 4k|8k; Context: http, server, location Sets the size of the buffer used for reading the first part of the response received from the proxied server. This part usually contains a small response header. By default, the buffer size is equal to one memory page. This is either 4K or 8K, depending on a platform. It can be made smaller, however.

Syntax: proxy_buffering on | off; Default: proxy_buffering on; Context: http, server, location Enables or disables buffering of responses from the proxied server. When buffering is enabled, nginx receives a response from the proxied server as soon as possible, saving it into the buffers set by the proxy_buffer_size and proxy_buffers directives. If the whole response does not fit into memory, a part of it can be saved to a temporary file on the disk. Writing to temporary files is

Syntax: proxy_buffers number size; Default: proxy_buffers 8 4k|8k; Context: http, server, location Sets the number and size of the buffers used for reading a response from the proxied server, for a single connection. By default, the buffer size is equal to one memory page. This is either 4K or 8K, depending on a platform.

Syntax: proxy_bind address [transparent] | off; Default: — Context: http, server, location This directive appeared in version 0.8.22. Makes outgoing connections to a proxied server originate from the specified local IP address with an optional port (1.11.2). Parameter value can contain variables (1.3.12). The special value off (1.3.12) cancels the effect of the proxy_bind directive inherited from the previous configuration level, which allows the system to auto-assign

Syntax: proxy_bind address [transparent] | off; Default: — Context: stream, server This directive appeared in version 1.9.2. Makes outgoing connections to a proxied server originate from the specified local IP address. Parameter value can contain variables (1.11.2). The special value off cancels the effect of the proxy_bind directive inherited from the previous configuration level, which allows the system to auto-assign the local IP address. The transparent paramete

Syntax: proxy_buffer size; Default: proxy_buffer 4k|8k; Context: mail, server Sets the size of the buffer used for proxying. By default, the buffer size is equal to one memory page. Depending on a platform, it is either 4K or 8K.