I'd like to know exactly what is leaving my laptop and going on the wire.
I used to use Little Snitch for this, but apparently it's possible to do the same thing with ipfw.
How would I go about doing this?
Running OS X 10.6.4.
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Sign up to join this communityyou can use the tcpdump command to see your network traffic
www.tcpdump.org/tcpdump_man.html
open Terminal.app and type
sudo tcpdump -i en1
en1 should be your wireless port, and en0 is usually your ethernet port
type ifconfig
for a list
To use ipfw, I believe you add a logging clause to your rules. When a packet matches a rule, it will be logged. Its been years since I've use ipfw, so you best check the manual:
http://www.freebsd.org/doc/en/books/handbook/firewalls-ipfw.html
or type man ipfw
into Terminal.app
ipfw
exists on more than just Mac OS, but Little Snitch is exclusive to Mac OS. You might get better (or faster) answers that way.