https://answers.axonivy.com/questions/415/web-service-authentication-with-ntlm<p>We should call an internal web service but we always get the error message <code>Transport error: 401 Error: Unauthorized</code>.</p> <p>We try to authenticate with NTLM and we have the suspicion that we made wrong configuration settings. How can we configure Ivy to work with NTLM based web services?</p>enWed, 17 Aug 2011 11:38:52 -0400https://answers.axonivy.com/questions/415/web-service-authentication-with-ntlm/416<p>Xpert.ivy supports NTLM authentication for web services exclusively with Axis 2 which uses the good old HTTPClient library. Unfortunately this library does not support all NTLM versions. </p> <p>Use something like this:</p> <pre><code>import org.apache.axis2.transport.http.HttpTransportProperties; import org.apache.axis2.transport.http.HTTPConstants; HttpTransportProperties.Authenticator auth = new HttpTransportProperties.Authenticator(); auth.setDomain( "yourDomain" ); auth.setHost( "einHost" ); authSchemes.add(HttpTransportProperties.Authenticator.NTLM); auth.setAuthSchemes(authSchemes) auth.setPreemptiveAuthentication(true); // send authentication info at once axisClientOptions.setProperty(HTTPConstants.AUTHENTICATE, auth); </code></pre> <p>This code work with some Sharepoint services and NTLM. If you need to know more about authentication with NTLM and Axis please refer to internet resources.</p>Tamas KISWed, 17 Aug 2011 11:38:52 -0400https://answers.axonivy.com/questions/415/web-service-authentication-with-ntlm/416