Remotely tell which DC a computer logged in through

Hi guys,

I know that a user can type in "set logonserver, or set l" to tell which domain controller they authenticated through.  Is there a way I can tell which DC remote computers used to login?  Do I have to go into the logs?  I was trying to use psexec to pull th einfo remotely, but pretty tough using it with the set or echo command.

Basically we are removing all DCs in a few sites, and currently leaving the sites there. I want to make sure that the computers are logging in through the DCs in their neighbor sites.

Thanks,

Dan Heim