ngx_dynamic_limit_req_module

Introduction

The ngx_dynamic_limit_req_module is used to dynamic lock IP and release regularly.

Configuration example：

worker_processes  2;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    
    dynamic_limit_req_zone $binary_remote_addr zone=one:10m rate=100r/s redis=127.0.0.1 block_second=300;
    dynamic_limit_req_zone $binary_remote_addr zone=two:10m rate=50r/s redis=127.0.0.1 block_second=600;
    
    
    server {
        listen       80;
        server_name  localhost;
        location / {
            root   html;
            index  index.html index.htm;
            dynamic_limit_req zone=one burst=5 nodelay;
            dynamic_limit_req_status 403;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
    server {
        listen       80;
        server_name  localhost2;
        location / {
            root   html;
            index  index.html index.htm;
            dynamic_limit_req zone=two burst=5 nodelay;
            dynamic_limit_req_status 403;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

Support black-and-white list

White list rules

redis-cli set whiteip ip

example： redis-cli set white192.168.1.1 192.168.1.1

Black list rules

redis-cli set ip ip

example： redis-cli set 192.168.1.2 192.168.1.2

Installation

Option #1: Compile Nginx with module bundled

cd redis-**version**/deps/hiredis
make 
make install 

cd nginx-**version**
./configure --add-module=/path/to/this/ngx_dynamic_limit_req_module 
make
make install

Option #2: Compile dynamic module for Nginx

Starting from NGINX 1.9.11, you can also compile this module as a dynamic module, by using the --add-dynamic-module=PATH option instead of --add-module=PATH on the ./configure command line above. And then you can explicitly load the module in your nginx.conf via the load_module directive, for example,

    load_module /path/to/modules/ngx_dynamic_limit_req_module.so;

This module is compatible with following nginx releases:

Author Gandalf zhibu1991@gmail.com