apache/nginx/iis反向代理发送Host域名

1、apache：在<VirtualHost/>标签中的最后添加ProxyPreserveHost on

<VirtualHost *:80>
 RewriteEngine on
 ProxyPass /TLimages/ !
 ProxyPass /imagelist/ !
 ProxyPass /xiazai/ !
 ProxyPass /ad/ !
 ProxyPass / balancer://proxy/
 ProxyPassReverse / balancer://proxy/
 ProxyPreserveHost on
</VirtualHost>

2、nginx：在location {…}中添加proxy_set_header Host $host

location ^~/proxy_path/ {
 root "/www/html";
 index index.html;
 proxy_pass http://192.168.100.101/;
 proxy_set_header Host $host;
 proxy_set_header X-Real-IP $remote_addr;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

3、iis：设置preserveHostHeader:true

%windir%\system32\inetsrv\appcm d.exe set config -section:system.webServer/proxy -preserveHostHeader:true /commit:apphost

iis反向代理指定Host配置：
设置preserveHostHeader:true之后再添加URL重写服务器变量。
1.打开URL重写

2.点击查看服务器变量

3.点击添加

4.添加HTTP_HOST

5.web.config反向代理配置

<rule name="Proxy" stopProcessing="true">
    <match url="(.*)" />
    <serverVariables>
        <set name="HTTP_HOST" value="www.yqll.com" />
    </serverVariables>
    <action type="Rewrite" url="http://192.168.100.101/{R:1}" />
</rule>