[Samba] Usernames in /etc/passwd vs domain (Domain Member Setup)

[Eddie Rowe]

I am new to Samba and working to understand things since I have an existing Samba server joined to Active Directory as a domain member.  I have been reading the O'Reilly Samba book to get oriented to things and now setting up a test server.  So as to not muddy the water with distribution specific instructions I have been working off the Samba wiki<https://wiki.samba.org/index.php/Setting_up_Samba_as_a_Domain_Member> to setup a test system.  Under the section "Configuring the Name Service Switch" the wiki states "Do not use the same user names in the local /etc/passwd file as in the domain.".  I am afraid this is how things are setup today on the existing server.  Any suggestions for what I can review in the Wiki or Samba site to understand how I can bring our setup into one that would be a standard setup?  Today the process for giving someone access to a Samba share involves killing winbind, adding the local account, adding the group that corresponds to the share, restarting winbind.