今天有个人问我，nginx怎么限制ip连接数，突然想不起来了，年龄大了，脑子不怎么好使了。还要看一下配置才想起了。那个人又问我，你测试过的吗？一下子把我问蒙了，我真没测试过了，也不知道启作用了没有。下面我做了一下测试。以前用apache的时候到是做过测试，apache怎么限制ip数，请参考：利用apache限制IP并发数和下载流量控制
1,配置nginx.conf
- http{
- .............
- limit_zone one $binary_remote_addr 10m; //我记得默认配置就有，只不过是注释掉了，如果没有加一下
- ..............
- server{
- .................
- location {
- .........
- limit_conn one 20; //连接数限制
- limit_rate 500k; //带宽限制
- ........
- }
- .................
- }
- .............
- }
- [root@localhost nginx]# /etc/init.d/nginx reload //重新加载
2，测试限制ip连接数
- [root@localhost nginx]# webbench -c 100 -t 2 http://127.0.0.1/index.php
- Webbench - Simple Web Benchmark 1.5
- Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.
- Benchmarking: GET http://127.0.0.1/index.php
- 100 clients, running 2 sec.
- Speed=429959 pages/min, 2758544 bytes/sec.
- Requests: 14332 susceed, 0 failed.
- [root@localhost nginx]# cat /var/log/nginx/access.log|grep 503 |more //这样的数据有很多，最好加个more或者less
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- 127.0.0.1 - - [25/Apr/2012:17:52:21 +0800] "GET /index.php HTTP/1.0" 503 213 "-" "WebBench 1.5" -
- ..............................................................................................
通过以上测试，可以得出限制ip连接数是没有问题的，但是限制带宽看不出来，说实话这个不好测试，所以就没测试了。
