you tried standard command
smbpasswd -r dc1 -j domain.com -U admin
And still doesn't work ??
Right ?
If yes, this might be some Kerbos authentification problem ...
EDIT:
Would you plz include Samba's versiion ?? I'm not quite used with Fedora and it's packaging..
Thansk!
EDIT AGAIN:
might be a link to remember :
http://windows.ittoolbox.com/documen...ent.asp?i=1893