最近在研究nginx的负载均衡和反向代理,先看下这两个简单的配置吧!
负载均衡
worker_processes 1;
events {
worker_connections 1024;
}
http{
upstream lxx {//默认是80端口
server 192.168.0.62 weight=2;
server 192.168.0.161 weight=3;
}
server {
listen 80;
location / {
proxy_pass http://lxx;
}
}
$ s) ^$ L# q, f}
反向代理
worker_processes 1;
events {
worker_connections 1024;
}
http{
upstream lxx {//默认是80端口
server 192.168.0.62 weight=2;
server 192.168.0.161 weight=3;
}
server {
listen 80;
location / {
proxy_pass http://lxx;
4 ^) {. C% D. ~ R: r
#Proxy Settings
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
proxy_max_temp_file_size 0;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
}
$ ^% w1 f; x* @) n( h& v}
1 n+ Q B# W: [
从配置上来看,它只是多了Proxy Settings下面的一些设置参数!但从实际的表现结果来看,感觉区别并不是很大,负载均衡已经可以把用户的请求按照相关算法和规则发送到web集群的某台机器,而反向代理也是实现了如此的功能,它们的具体的区别在哪里?求普及!
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