[luau] Quuestion about Linux Security and domain name

[Glen]

Hi everyone,



I am Glen, a system administrator at UHM, College of Education.



I recently installed Mandrake 9.1 to one of our old PCs for using Samba.

Primly purpose of the server is file and printer sharing, replacing current
win2k file server.

I will not use the server as domain controller; just let users to use as a
network drive in our workgroup.



My concern is security; I would like to know how to set up firewall to avoid
hacing to

protect our data.

I still do not have fluency on linux environment.  I know basic shell
operation, but am not fammiller with system configuration.  I relay on
Webmin and Mandrake Control Center.



Another question is how to set up server to access by domain name.

Our department has domain "coe.hawaii.edu" and I named the server to "foo"
by changing /etc/hosts file and give it static IP, but I cannot access to
the server by entering "foo.coe.Hawaii.edu".  Please let me know what I need
to know.



Thank you,

Glen