How can I disable SAMBA broadcasting features?

I don't need any broadcasting/autodiscovery, everything is deterministic and strictly configured in my nets. I drop trash SAMBA broadcasts by firewall anyway, can't I just disable them to keep my network traffic clean?

Kill nmbd

edit your rc/init scripts that launch smbd and nmbd so they don't run nmbd. nmbd is the automatic discovery component of samba. Disabling it will cut down on the traffic.

http://www.samba.org/samba/docs/man/manpages-3/nmbd.8.html

In Debian at least, you could use the option 'disable netbios = yes' in your smb.conf file. I think this is a better option than edit the init scripts. This way you will not have to edit the init scripts every time they get overwritten by upgrades.