[Samba] Security concerns?

[Steve Freeman]

Hi,

Cured the kernel problem, I now get a very good service from samba.

However, in my /var/log/samba directory, there are a lot of public IP 
attempts to gain access. All are denied, however, why are they getting past 
iptables?

My INPUT policy is set to DROP, and although I allow certain ports, none of 
them are 139 or similar.

Also, my hosts allow is set to my local subnet (hence their denial).

Any ideas?

Kind regards,

Mike F