一、限制响应给客户端的传输速率，单位是bytes/second默认值0表示无限制
limit_rate rate; 语境：http, server, location,if in location
1、生成一百兆的文件
dd if=/dev/zero of=test.img bs=1M count=100
2、直接下载
[18:47:21 root@localhost ~]#wget www.a.net/test.img
--2021-05-31 18:47:37-- http://www.a.net/test.img
Resolving www.a.net (www.a.net)... 192.168.1.5
Connecting to www.a.net (www.a.net)|192.168.1.5|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: ‘test.img.1’
100%[=========================================================================>] 104,857,600 124MB/s in 0.8s
2021-05-31 18:47:38 (124 MB/s) - ‘test.img.1’ saved [104857600/104857600]
3、限定10k 默认是字节为单位
server {
server_name www.a.net;
root /data/site1;
limit_rate 10k ;
location /about {
root /opt/testdir/;
index test.html;
}
location /test1 {
root /opt/;
try_files $uri $uri.jpg =404;
}
error_page 404 =200 /404.html;
location = /404.html {
}
}
4、测试下载
[18:50:39 root@localhost ~]#wget www.a.net/test.img
--2021-05-31 18:50:39-- http://www.a.net/test.img
Resolving www.a.net (www.a.net)... 192.168.1.5
Connecting to www.a.net (www.a.net)|192.168.1.5|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: ‘test.img.2’
0% [ ] 491,520 9.97KB/s eta 2h 47m
二、限制客户端使用除了指定的请求方法之外的其它方法
limit_except method ... { ... }，仅用于location
1、测试访问，默认是不支持
curl -X OPTIONS 192.168.1.5 <html> <head><title>405 Not Allowed</title></head> <body> <center><h1>405 Not Allowed</h1></center> <hr><center>nginx/1.20.1</center> </body> </html>
2、允许192.168.1.4这个网段可以GET，其他都拒绝
server { server_name www.a.net; root /data/site1; limit_rate 10k ; location / { limit_except GET { allow 192.168.1.4; deny all; } } location /about { root /opt/testdir/; index test.html; } location /test1 { root /opt/; try_files $uri $uri.jpg =404; } error_page 404 =200 /404.html; location = /404.html { } }