# cat mirror.conf
server {
listen 9999;
server_name 172.20.111.180;
access_log /export/server/nginx/logs/mirror.log main;
error_log /export/server/nginx/logs/mirror_error.log error;
#设置源,即要请求的目标
location / {
mirror /mirror;
mirror_request_body on;
proxy_pass http://172.20.110.221:8080;
}
#复制源请求
location = /mirror {
internal;
proxy_pass http://172.20.111.48:8080$request_uri;
}
}
其中
mirror_request_body on 为默认开启,表示是否镜像请求body部分,与 proxy_request_buffering、fastcgi_request_buffering、scgi_request_buffering 和 uwsgi_request_buffering 冲突,一旦开启 mirror_request_body 为 on,则请求自动缓存。
流量放大也是非常的简单,只需要在请求源的时候多复制一份即可
server {
listen 80;
server_name _;
location / {
mirror /mirror;
mirror /mirror;
mirror_request_body on;
proxy_pass http://127.0.0.1:8080;
}
location = /mirror {
internal;
proxy_pass http://127.0.0.1:8080$request_uri;
}
这样既去请求时,请求一次,日志里便会有两次记录。
# curl 127.0.0.1/index.html
查看请求便会有两次记录
172.20.111.180 - - [16/Jul/2019:19:09:08 +0800] "GET /index.html HTTP/1.0" 200 612 "-" "curl/7.29.0" "-"
172.20.111.180 - - [16/Jul/2019:19:09:08 +0800] "GET /index.html HTTP/1.0" 200 612 "-" "curl/7.29.0" "-"
官方文档参考:http://nginx.org/en/docs/http/ngx_http_mirror_module.html