Reverse Proxy Advanced Topics
[ 112 ]The following table lists the directives available with the gzip module:
Table: Gzip module directives
Directive Explanation
gzip Enables or disables the compression of
responses.
gzip_buffers Specifies the number and size of buffers used
for compressing a response.
gzip_comp_level The gzip compression level (1-9).
gzip_disable A regular expression of User-Agents that
shouldn't receive a compressed response. The
special value msie6 is a shortcut for MSIE
[4-6]\. excluding MSIE 6.0; ... SV1.
gzip_min_length The minimum length of a response before
compression is considered, determined by the
Content-Length header.
gzip_http_version The minimum HTTP version of a request
before compression is considered.
gzip_proxied Enables or disables compression if the request
has already come through a proxy. Takes one
or more of the following parameters:• off: Disables compression
• expired: Enables compression
if the response should not be
cached, as determined by the
Expires header
• no-cache: Enables
compression if the Cache-
Control header is equal to
no-cache• no-store: Enables
compression if the Cache-
Control header is equal to
no-store
• private: Enables compression
if the Cache-Control header
is equal to private