[Samba] Need help with LDAP naming in SAMBA

[Shiraaz Singh]

Hi All 

I am a newbie to Linux and Samba but getting thru it slowly and
successfully.I am trying to get the Linux server accesible from windows 
and I need to know what the EXACT naming convention is for the LDAP
settings in Samba. 

Here is the scenario 

I have a MS Active Directory in place with a W2003 server acting as a
PDC emulator.The server is called Frodo and the domain is lab.co.za. 

I have Suse server 9.1 and want to make this available to the windows
clients and also want to use the Active Directory for authentication.In
samba I (via the Yast tool) I choose LDAP for authentication and need to
supply the path to the LDAP server (which would be Frodo) but I don't
know what the exact distinguished name should be.I was told to use 

cn=frodo,dc=lab,dc=co;dc=za 

but if I do an LDAP test I get an error "there seems to be no funtional
ldap servers at this location" 

can anyone help ?