apache ProxyPass: how to preserve original IP address

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We are using ProxyPass to redirect all "/r" requests to jboss on port 18080 as follows:

ProxyPreserveHost on
ProxyPass /r http://localhost:18080/redirectService/
ProxyPassReverse /r http://localhost:18080/redirectService/

But, that causes the IP address logged in jboss's access log as "127.0.0.1". Does somebody know how can we preserve the original IP from where the request came in HttpServletRequest? We want to acesss it from jboss servlet request in doGet()

5 Answers

If you have the capability to do so, I would recommend using either mod-jk or mod-proxy-ajp to pass requests from Apache to JBoss. The AJP protocol is much more efficient compared to using HTTP proxy requests and as a benefit, JBoss will see the request as coming from the original client and not Apache.

If you are using Apache reverse proxy for serving an app running on a localhost port you must add a location to your vhost.

<Location />            
   ProxyPass http://localhost:1339/ retry=0
   ProxyPassReverse http://localhost:1339/
   ProxyPreserveHost On
   ProxyErrorOverride Off
</Location>

To get the IP address have following options

console.log(">>>", req.ip);// this works fine for me returned a valid ip address 
console.log(">>>", req.headers['x-forwarded-for'] );// returned a valid IP address 
console.log(">>>", req.headers['X-Real-IP'] ); // did not work returned undefined 
console.log(">>>", req.connection.remoteAddress );// returned the loopback IP address 

So either use req.ip or req.headers['x-forwarded-for']

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