Support for Kerberos V4 clients was included in the Solaris 2.0 release. In the 2.6 release, the mount and share commands were altered to support NFS version 3 mounts that use Kerberos V5 authentication. Also, the share command was changed to enable multiple authentication flavors for different clients. See RPCSEC_GSS Security Flavor for more information about changes that involve security flavors. See “Configuring SEAM NFS Servers” in System Administration Guide: Security Services for information about Kerberos V5 authentication.