Jim Ault wrote:
On 3/7/07 9:14 PM, "J. Landman Gay" <[EMAIL PROTECTED]> wrote:
... try typing "sudo tcpdump" in
a Terminal window. Type Control-c to stop.
Wow, it's all in there, isn't it? I was overwhelmed with output. Then I
read the man page and figured out how to limit the output to only stuff
going in and out of my desktop machine. That's pretty cool, in spite of
how your eyes can glaze over after reading 831 entries.
All I get is:
tcpdump: WARNING: en0: no IPv4 address assigned
tcpdump: listening on en0, link-type EN10MB (Ethernet), capture size 96
bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
[jimaultscomputer:~] jault%
so I must be in a pretty quiet part of the internet.
Are you on a network? I was seeing everything -- communications with the
router, my email client auto-checking with my provider for email, the
other machines on the network broadcasting their presence, my router
asking for machine data, etc. etc. I got over 800 entries in under 5
minutes. Then I went to a few web sites while the log was still running,
and saw every interaction with the remote sites. Try starting the dump
and then getting your mail, or visiting a web site. If you are just
sitting idle and there are no other active machines on the network, then
you probably aren't generating any activity.
--
Jacqueline Landman Gay | [EMAIL PROTECTED]
HyperActive Software | http://www.hyperactivesw.com
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