Microsoft Print Services for Unix Security

[hatboy]

I've been playing with Microsoft Print Services for Unix in Windows 2000 Advanced Server. I've been trying to set up the Windows server as an LPD server to use with Linux and Solaris clients. I've gotten printing to work ok. The problem is that I want only certain users to be able to print to certain printers. I've set all of this up using the security tab in printer properties, but these settings don't get applied to jobs coming in from Unix clients (they work perfectly on jobs coming from Windows clients). So, anybody using LPD can print to any printer, despite my security settings. I've tried everything I can think of and I haven't had any luck. The really bizarre thing is that jobs from Unix clients show up in the print queues as being owned by the proper user. Does anybody have any experience with this?