Enable communication HTTPS in SOAP Receiver Adapter

Question

Hi gurus,
I have configured the soap receiver adapter with the URL:
"https://www.xxxx.com/yyyyyyyyyy.asmx" without the user authentication.
I have executed the webservice since SOAP-UI and works well. But if I run the webservice from SAP XI does not work. In the transaction SXMB_MONI shows the following error:
<SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="1">
  <SAP:Category>XIAdapterFramework</SAP:Category>
  <SAP:Code area="MESSAGE">GENERAL</SAP:Code>
  <SAP:P1 />
  <SAP:P2 />
  <SAP:P3 />
  <SAP:P4 />
  <SAP:AdditionalText>com.sap.aii.af.ra.ms.api.DeliveryException: Connection closed by remote host.</SAP:AdditionalText>
  <SAP:ApplicationFaultMessage namespace="" />
  <SAP:Stack />
  <SAP:Retry>M</SAP:Retry>
  </SAP:Error>"
What is happening?
Thanks,
Jose.

Answer 1

Jose,
client certificate is the "top" authentication mechanism during SSL handshake, like this :
- XI authenticate the SSL certificate (server) issued by target server against a (trusted) list of known certification authority, then target will ask XI to present its own certificate (client) and it will make sure this client certificate can be trusted (verifying it has been certified by a known authority). Handshake is "done"
but you can also have
- "anonymous" mode (XI will make sure SSL cert provided by the target has been issued - and so can be trusted - by a (well)known certification authority), that's it. Target does not expected any other security feature
- user/pwd over a SSL connection (like above, but you'll also have to provide a user and pwd for authentication at target level)
Hope this helps
Chris