? on sharing files on network

[microAmp]

If I share a folder on one computer on the network with another computer on the network which is behind a router w/firewall (Netgear RP114) while the router is hooked up to the net, via cable modem, can other people outside the router see the files?

I do plan to do a Sheids UP test to see if it hits anything but just in case would ask here too.
TIA

 

[Heisenberg]

Assuming both computers are behind it and the router/firewall is properly configured, no. That's sort of the whole point of a firewall. Any machine with a valid IP not behind a firewall of some type is wide open to the world.

 

[JackMDS]

The Entry Level Routers main activity is the Network Address Translation (NAT) i.e. makes sure that each computer on the Network gets the Internet info. that belongs to it.

To make it inexpensive and uniform the implementation of the NAT is done by setting it so that it reacts only to requests coming from the inside of the network.

Because of this (the reaction to the inside only), way of working the NAT also act as a "Firewall", since it is not letting in info. unless it was requested from the inside.

If an inside application send info through a port, the port get it out, however if the answer from the outside comes thought another unexpected port the NAT does not know what to do and blocks it.

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Basic Protection for Broadband Internet Installation.

The following is not an inclusive solution for protecting all Internet connection installation, but rather am attempt to help Home and SOHO users to be reasonable safe in their Internet endeavors.

It depends what you have on your computer, if you have something that is very desirable, and a "real pro" wants it, no matter what you do they probably will find the way in.

In general, security issues at home and small office installations involves:

1. Unauthorized Internet traffic coming in (from the Internet to your computer).

2. Unauthorized Information going out (from your Hard Drive to some one else Web Server), AKA software calling home.

3. Accidental leakage. Firewall left disable, computer left in DMZ etc.

Unauthorized Information going out is mainly a function of "spyware" and programs that are "calling home". Unfortunately, the amount of programs that are calling home is growing by the day.

The Hardware Firewall provided by most Cable/DSL Routers, is an excellent tool. However, it mainly secures the Incoming traffic, to secure the Outgoing aspect you need to add Software firewall.

Thus, many Router owners use the combination of Hardware, Software Firewall.

A popular software firewall is Zone Alarm (Basic version free).

ZoneAlarm Download.

Norton Internet security provides very good live control on info going out (Not free).

Norton Personal Firewall 2002.

You can check your system's security by logging to the following page, scroll down, and click on Shields Up.

Gibson Default Page.

Gibson Default Page.