SAP Knowledge Base Article - Preview

3095129 - Kerberos SSO works for SAP GUI access, but SPNego fails for web-based access

Symptom

Login via Kerberos Sigle Sign-On (SSO) is working for access to NetWeaver ABAP systems via SAP GUI. However, SPNego SSO is failing for web-based access (e.g. login via the browser) - a logon screen appears asking for user credentials.

Usually, the logon screen is showing even login from the same Windows PC and same user name.


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Environment

  • SAP NetWeaver
  • ABAP Platform

Product

ABAP platform all versions ; SAP NetWeaver 2004 ; SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5

Keywords

Kerberos, klist, HTTP/, SPN, Service Principal Name, keytab, Service Account, logon procedure, SPNEGO Authentication, SSO, Single Sign-On, Received an NTLM token, This is not supported, SPNEGO, basic authentication, web application, web-based, Windows Security, login, logon , KBA , BC-SEC-LGN , Authentication , BC-SEC-LGN-SPN , SPNego for ABAP , Problem

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