[Samba] Restricting access to SAMBA Server for particular user+workstation combination

[Artyom Viklenko]

Hi!

Is it possible in SAMBA 2.2.8 to restrict particular user to
loggin in SAMBA-driven domain from particular workstations?

For example, user john can login from workstation WS01,
but can't login from WS02, user mary can login from both
workstations, and user mark can login only from WS02.

Does antbody knows how to implement such environment?

Thanks!

-- 
Artyom