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;
}
}
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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;
#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;
}
}
}
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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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