Module ngx_stream_limit_conn_module
The ngx_stream_limit_conn_module module (1.9.3) is used to limit the number of connections per the defined key, in particular, the number of connections from a single IP address.
ngx_stream_limit_conn_module
Syntax: limit_conn_zone key zone=name:size;
Syntax: limit_conn zone number; Default: —
Syntax: limit_conn_log_level info | notice | warn | error;