WireShark is Ethereal. From the WireShark FAQ:

From http://www.wireshark.org/faq.html#q1.2

Snort is an Intrusion Detection System, not a sniffer.

tcpdump is command line and Wireshark is a GUI. They do the same thing.

I use Wireshark to process a tcpdump or airdump capture.

If you can afford a machine to do nothing but act as a firewall, I would place it between the modem and router. Otherwise, I would do the same: modem -> router -> switch. The current wave of routers...

Those shares do not look out of the ordinary. However, I am not familiar with Windows Vista shares. Windows XP added a "Shared Docs" folder, which is available to all users on the same local machine...

This was a fun thread to take part in.

A parent who did not overreact and is even researching technologies. All the while, allowing their children to be children.

I am rather interested to hear...

It is trivial to eavesdrop on a wireless connection, especially if you are a part of that wireless network. From the bits you have shared in this thread, it sounds that he is either a) sniffing the...

ISPs record who received what IP and when (if DHCP). They have been for years. (in the US anyway) Even as far back as dial-up..

First, I would identify what service was breeched. (or services) SSH? FTP? If you do not need that specific service, shut it down and disable it for good.

Second, I would look at reviewing your...

A "learning" firewall, similar to some spam filters. (target would be home users, probably)

Similar idea for anti-virus (blacklists do not work).

Honeypots are always fun.

There are several...

Honepots face the world and log an intruders attack on the honepot system/machine.

They are not a usual component for a business.