I have a Ubuntu 9 server with samba 3.3 installed. This server has two network interfaces, one to a "public network" which I do not have any control over and another to a private LAN.

On the private LAN, samba is the Domain Controller and nmbd is the WINS server on that network.

On the "public network", I have configured a second instance of nmbd to run as a WINS client.

The setup seems to work fine for Windows XP (on the domain or otherwise) as well as other Ubuntu machines.

Finally, my question: Mac computers seem unable to connect to the samba server. As far as I can tell, it is as if samba is invisible to the MAC computer. Could my configuration of nmbd be causing this problem? Or is this simple a Mac oddity and is there anything I can do about it?

New updates/info: We tried to connect through the Finder -> Connect to Server, we entered smb://servername where servername is the netbios and DNS name. (There is also a DNS entry for the same name on the network) We also tried connecting by IP address

Also, I just realized that there is at least one Mac which can connect. (Leopard 10.5.8) I will try to get the Mac OS versions of the computers which couldn't connect as soon as I can.

The Mac which could not connect was running Mac OS X 10.4.11. Was there a change to samba on Mac OS between 10.4 and 10.5?