Mastering Nginx

Appendix A

[ 235 ]

Directive Explanation Context/Default

limit_req Sets a limit with bursting

capability on the number of

requests for a specific key in a

shared memory store (configured

with limit_req_zone). The

burst may be specified with

the second parameter. If there

shouldn't be a delay in between

requests up to the burst, a third

parameter nodelay needs to be

configured.

Valid context: http,

server, location

Default value: -

limit_req_log_level When NGINX limits the number

of requests due to the limit_req

directive, this directive specifies

at which log level that limitation

is reported. A delay is logged

at a level one less than the one

indicated here.

Valid contexts: http,

server, location

Default value: -

limit_req_zone Specifies the key to be limited in
limit_req as the first parameter.
The second parameter, zone,
indicates the name of the shared
memory zone used to store
the key and current number of
requests per key and the size of
that zone (name:size). The third
parameter, rate, configures the
number of requests per second
(r/s) or per minute (r/m) before
the limit is imposed.

Valid context: http

Default value: -

limit_zone Deprecated. Use limitconn
zone instead.

Valid context: http

Default value: -

lingering_close This directive specifies how a
client connection will be kept open
for more data.

Valid contexts: http,

server, location

Default value: on

lingering_time In connection with the
lingering_close directive, this
directive will specify how long a
client connection will be kept open
for processing more data.

Valid contexts: http,

server, location

Default value: 30s