There was a failure in the NFS server's acquisition of Kerberos Ticket. This message is issued when NFS is configured to also allow system authentication (AUTH_SYS).

If only AUTH_SYS authentication is specified as a site attribute (sys) then this message is issued to the NFS server log only (and not to the console). If AUTH_SYS authentication (sys) and any kerberos flavors (KRB5 or KRB5I or KRB5P) are specified as site attributes then this message is issued to the console as well as the NFS server log.

In the message text:

procName

The name of the failing API. For details, refer to z/OS Integrated Security Services Network Authentication Service Programming.

krbRc

The error code returned by the Kerberos Security Mechanism. For details, refer to z/OS Integrated Security Services Network Authentication Service Administration.