[GitHub] [apisix] lizeming commented on issue #2468: request help: The problem of rewriting HTTP request header ‘Host’

[GitBox]

lizeming commented on issue #2468:
URL: https://github.com/apache/apisix/issues/2468#issuecomment-718328570


   This is one of the business request chains. 
   
   This business has been around for a long time. 
   
   Request chain: client -> internet address(2xx.xxx.xxx.xx9:8096) -> 
pre-agent(172.xx.xxx.135:9080) -> business-agent(10.xx.xx.31:8096) -> business 
service(10.xx.xx.45)
   
   The following is a summary of the main configuration of the business chain:
   
   pre-agent(172.xx.xxx.135):
   ```
   http {
       server_tokens  off;
       include        mime.types;
       default_type   application/octet-stream;
       proxy_redirect off;
       server {
           listen 9080;
           location / {
               proxy_set_header Host $http_host;
               proxy_pass http://10.xx.xx.31:8096;
           }
       }
   }
   ```
   
   business-agent(10.xx.xx.31):
   ```
   http {
       server_tokens  off;
       include        mime.types;
       default_type   application/octet-stream;
       proxy_redirect off;
   
       server {
           listen 8096;
           location / {
               proxy_set_header Host $http_host;
               proxy_pass http://10.xx.xx.45:8080;
           }
       }
   }
   ```
   
   Request example:
   ```
   $ curl -v http://2xx.xxx.xxx.xx9:8096/crxxxxxxor/
   *   Trying 2xx.xxx.xxx.xx9:8096...
   * TCP_NODELAY set
   * Connected to 2xx.xxx.xxx.xx9 (2xx.xxx.xxx.xx9) port 8096 (#0)
   > GET /crxxxxxxor/ HTTP/1.1
   > Host: 2xx.xxx.xxx.xx9:8096
   > User-Agent: curl/7.68.0
   > Accept: */*
   >
   * Mark bundle as not supporting multiuse
   < HTTP/1.1 302 Found
   < connection: close
   < Content-Type: text/html;charset=utf-8
   < Content-Length: 0
   < Server: Openresty
   < Date: Thu, 29 Oct 2020 02:45:41 GMT
   < Set-Cookie: JSESSIONID=4664rfv5A55tgb11B6yhn67uj3; Path=/crxxxxxxor; 
HttpOnly
   < Location: http://2xx.xxx.xxx.xx9:8096/crxxxxxxor//login/loginManage/toLogin
   <
   * Closing connection 0
   ```


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