On Sat, 30 Sep 2000, linda hanigan wrote:
> Hi all,
> Someone else asked this question but I never saw an
> answer on the list.
> If I set up a firewall on my Linux computer do I really
> still need to disable print and file sharing on the windows
> boxes when I connect to the internet. I use a dial up
> connection. My linux box provides print service to the
> windows boxes as well as acess to a zip drive. I am
> not very good about turning off the services when
> I pick up mail. I thought if I started using my linux
> box for internet connections and connection sharing
> with ip chains set up for a firewall I wouldn't have
> to worry about it anymore. I ordered Securing Linux
> step by step so hopefully I will do it right.
> Thanks
> Linda Hanigan
>
No, you do not need to disable file and print sharing inside the
firewall. As long as you are blocking access through the firewall, you
will have no problems. I do something like this on my home network - I
have Samba running on a server inside the firewall, as well as one
windows machine driving a Windows only laser printer. What is
interesting is all the connection attempts I see in my logs to port 139
from outside the firewall...
I don't realy recomend running Samba on the firewall machine itself,
though you could probably get away with it, as long as you are carefull
about limmiting Samba to the private IP range you use inside the
firewall, and make sure the firewall rejects any trafic on your private
IP range from outside the firewall. I did this when I was using dialup
and my server was the machine with the modem. It worked fine, and even
passed the firewall tests done from outside the network.
Mikkel
--
Do not meddle in the affairs of dragons,
for you are crunchy and taste good with ketchup.
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