Hi,
these Notes will help you :
- Note 352295 - Microsoft Windows Single Sign-On options
- Note 595341 - Installation issues with Single Sign-On and SNC
- Note 1580808 - SAP Logon 7.20: "SNC logon w/o SSO" for connection entry
- http://help.sap.com/saphelp_nwes72/helpdata/en/44/0ea40dc6970d1ce10000000a114a6b/frameset.htm
For Windows SAP Servers pls download the libs of note 352295.
For Linux use the one on OS level ( /usr/lib64/libgssapi_krb5.so )
For Linux make sure that the krb5 rpm packages are installed
krb5-32bit.......
krb5-...............
krb5-client.......
I hope this helps
greetings
oliver