[Samba] windows to unix user name mappings

[Jerome Haltom]

I'd like my canonical Unix names to be of the form user at KERBEROS-REALM.
Is there anyway to accomplish this? I'd also like NSS to lookup all the
various variations and return that canonical representation.

This seems to me to be the most appropriate way to map them. Is there a
way to configure this?

If not, is there anyway to return DOMAIN\user when lookups for 'user'
happen?