I have ubuntu with samba installed.
Initially My Windows were not able to see Ubuntu on my network list. After searchinga lot i found that i had to write this line in smb.conf and it worked
"ldap ssl = No"
Don't know why.
Now my MAC is also not able to see ubunut but if click on connect to server and use smb://servername then my connection is established.
Now is there any thing which i can do so that MAC can see ubuntu in share and i don't need to use connect to server thing.