Hi all...
I was wondering if someone could suggest a good network analyzer/packet sniffer for my home network. I plan on getting a LAMP going on this network and possible a mail server. I want to study network security and am not sure where to start. Any advice would be greatly appreciated. Thanks!
(I would be using my Ubuntu Linux machine for this)

I would suggest going with an installation of snort.

If you have a separate computer to dedicate as your "firewall/gateway" then i would suggest downloading a linux live-cd firewall and reading about what options those offer.

ipcop
devil linux
those are two of the most commonly used cd-based firewalls

Ettercap?

It seems to be pretty decent, but I will warn you that I've never used it before.

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