Question

Does anyone know in DB2 if you can run any SQL that shows if you are connecting using a kerberos connection ?

Answer 1

The following might work for; it doesn’t say explicitly that the connection was authenticated via Kerberos but it implies authentication via Kerberos.

    SELECT 1 FROM SYSIBMADM.DBMCFG
    WHERE NAME='authentication'
    AND VALUE IN('KERBEROS','KRB_SERVER_ENCRYPT') FETCH FIRST ROW ONLY