on 07-28-2015 11:43 AM
Hi Everybody,
I successfully configured HTTPS Authentication to my ERP backend in SUP.
Now I wish to change the authentication to point at HTTPS on my Netweaver Gateway. The ERP System Trusts this gateway and so if authenticated things should work ok.
I have verified the HTTPS service on the gateway is active and when I test this in a browser I get a password challenge and everything works ok.
Now, when I test in our APP I am receiving a 401 error back from the Gateway system. This is strange since the URL for authentication is the same as the one tested in a browser.
In the Server logs I see:
2015-07-28 11:25:30.690 WARN Security HttpChannel Thread-372 [com.sybase.security.http.HttpAuthenticationLoginModule] Server responded with the status code "401"
2015-07-28 11:25:30.689 WARN Other HttpChannel Thread-372 [org.apache.commons.httpclient.HttpMethodDirector] Unable to respond to any of these challenges: {negotiate=Negotiate}
It seems like the NWG system is configured differently to the ERP system and is trying to negotiate a more complex authentication protocol.
How can I check this? I have raised a ticket with SAP but as yet their response is not helpful.
Best regards,
Mark.
SMP com.sybase.security.http.HttpAuthenticationLoginModule is designed to handle www-authenticate=basic only. Looks like Gateway is sending www-authenticate=negotiate which I think is NTLM or Kerberos
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