We are using proxy server on linux (test.yan.com).
We are running oracle apps (on san.yan.com) port number is 8045.
we configured that entry at test.yan.com(http.conf)
when we gave the url http://test.yan.com/
we got the error.
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /OA_HTML/AppsLocalLogin.jsp.
Reason: DNS lookup failure for: san.yan.com
Apache/2.0.52 (Red Hat) Server at test.yan.com Port 80