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SNC ERROR GSS: No credentials were supplied ,cache does not contain credentials name

Aug 03, 2017 at 02:31 PM

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Former Member

Hi Gurus,

We are trying to enable SNC from a non-abap (windows) system to abap (liniux) system.

Non-Abap(window) details-

Version Product --> Business Connector SAP Adapter

Version -->4.8 SR7

Release Notes Build Number -->769

We are trying to configure the connections using SNC towards SAP ABAP system from above window application.

without SNC, connections are working fine.

But we are facing error (Please check the screen shot), if SNC was enabled

snc.png

SNC Configuration at SAP Side--->

At SAP side snc parameters has been added for SNC , please check screen shot

snc-para.png

SNC Configuration At Window side --->

1.Download and Install the SAP Cryptographic Library

2.Setting environment variable for SECUDIR and LD_LIBRARY_PATH

SECUDIR = D:\SAP\SAPCrypto\sec

LD_LIBRARY_PATH = D:\SAP\SAPCrypto

3.Created Client PSE

4.Configured client PSE

Please help in resolving the issue.

Regards

Chander

snc.png (18.6 kB)
snc-para.png (17.0 kB)
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2 Answers

Milen Dontcheff
Aug 05, 2017 at 10:54 AM
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As per the settings in the "snc-para.png" (snc/gssapi_lib - krb5/appsec-rt/lib/64/libgss.so) it seems like on the "non-abap (windows) system" Kerberos 5 is used.

The Kerberos 5 is not supported in scenario for authentication or Single Sign-On with SAP's Secure Network Communication (SNC) interface with SAP R/3 (non-ABAP - ABAP SNC communication)

150380 - Is Kerberos 5 supported for use with SNC?

With some limitation the Kerberos is supported for authentication or Single Sign-On towards AS Java (if the Kerberos KDC does not send NTLM token)

1649110 - NTLM token received in authorization header, SPNego for Kerberos Authentication

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Former Member Aug 07, 2017 at 08:19 AM
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Hi Milen,

Parameter snc/gssapi_lib = /krb5/appsec-rt/lib/64/libgss.so is set in Default profile of SAP system which is running on unix server

Thanks

Chander Dubey

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How exactly does this change the fact the Kerberos 5 is used in scenario for authentication or Single Sign-On with SAP's Secure Network Communication (SNC) interface with SAP R/3 (non-ABAP - ABAP SNC communication)?

150380 - Is Kerberos 5 supported for use with SNC?

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