Nginx Combat (four) speed limit function

If a lot of users, the same time download Nginx server above the resources, this will be the Nginx server I/O produced a great burden, so the nginx server download speed limit settings are necessary.

First configure a Limit_zone in the HTTP segment, and then use Limit_conn and limit_rate for the speed limit setting where needed, as a simple example.

HTTP {limit_zone one $binary _remote_addr 10m; server {location/files/{limit_conn one 1; limit_rate_after 1000k; limit _rate 100k; }}} Limit_zone, which defines a container for each IP that stores the session state. This example defines a 10m size container named one, which is used in the limit_conn. Limit_conn One 1, restrict each IP that is logged in a state to initiate only a single concurrent connection. Limit_rate_after 1000k, start the speed limit after downloading 1000k. Limit_rate 100k, speed limit 100k for each connection. Note that this is the speed limit for the connection, not the IP speed limit. If an IP allows three concurrent connections, then this IP is the speed limit for limit_ratex3, set the time to adjust according to their own needs, or will not achieve their desired purpose.