Notes on the limit_traffic_rate module ===== To install, compile nginx with this ./configure option: --add-module=path/to/this/directory Nginx directive limit_rate could limit connection's speed, and limit_conn could limit connection number by given variable. If the client is a browser, it only open one connection to the server. The speed will be limited to limit_rate, unless the client is a multi-thread download tool. Limit_traffic_rate module provides a method to limit the total download rate by client IP or download URL, even there are several connections. The limit condition could be defined by the following directive. The limit_traffic_rate module need to use a share memory pool. Directive syntax is same to limit_zone. http { #limit_traffic_rate_zone rate $request_uri 32m; limit_traffic_rate_zone rate $remote_addr 32m; server { location /download/ { limit_traffic_rate rate 20k; } } } Changelogs v0.2 * modify algorithm, rate = (limit - last_rate)/conn + last_rate v0.1 * first release License ===== Same as nginx: /* * Copyright (C) 2010 Simon(bigplum@gmail.com) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */