[root@eithadpv111 ~]# curl -iLvk -u admin:admin -H "X-Requested-By: ambari" -X GET http://somehost.abc.com:8080/api/v1/check * About to connect() to proxy proxy-abc.something.com port 8080 (#0) * Trying xxx.xx.xx.xxx... connected * Connected to proxy-abc.something.com (xxx.xx.xx.xxx) port 8080 (#0) * Server auth using Basic with user 'admin' > GET http://somehost.abc.com:8080/api/v1/check HTTP/1.1 > Authorization: Basic YWRtaW46YWRtaW4= > User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2 > Host: somehost.abc.com:8080 > Accept: */* > Proxy-Connection: Keep-Alive > X-Requested-By: ambari > < HTTP/1.1 503 Service Unavailable HTTP/1.1 503 Service Unavailable < Cache-Control: no-cache Cache-Control: no-cache < Pragma: no-cache Pragma: no-cache < Content-Type: text/html; charset=utf-8 Content-Type: text/html; charset=utf-8 * HTTP/1.1 proxy connection set close! < Proxy-Connection: close Proxy-Connection: close < Connection: close Connection: close < Content-Length: 751 Content-Length: 751 < Network Error
Network Error (tcp_error)

A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

For assistance, contact your network support team.
* Closing connection #0