[Samba] Username DOMAIN\SAMBA_CLIENT1$ is invalid...

[Rex Dieter]

I'm seeing a lot of:

[2005/05/16 08:35:46, 1] smbd/sesssetup.c:reply_spnego_kerberos(250)
   Username DOMAIN\SAMBA_CLIENT1$ is invalid on this system

in the logs on my samba server after joining our ad DOMAIN, and 
accessing from SAMBA_CLIENT1 (also a member of the ad DOMAIN).

Otherwise, it appears to be functioning well.

Is this something to be worried about?

-- Rex