Blocking UDP ports in external interfaces

[eperez at consultant.com]

Hi people, i have some question about how to close udp ports in my
smb.conf file. Here I go....

I have the following in my smb.conf file:
[global]
bind interfaces only = true
interfaces = eth0 lo
socket address = 192.168.0.1 127.0.0.1
host allow = 192.168.0. 127.0.0.1

But doing netstat -n -all shows ports 137-138 udp listening in 0.0.0.0,
how do
i block these ports without using some firewall (iptalbes,ipchains) rules.
Basically because i like to close everything manually before doing some
firewalling rules.
 Im using Mandrake 8.0 w latest samba .

Thanks people,

Erick Perez
Net Admin



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