[Tutor] How to monitor streaming data from the internet via modem?
alan.gauld at freenet.co.uk
Thu Mar 9 00:47:51 CET 2006
> If the trading program is in java or perl, can I just tap into the raw
> data that trading program is recieving through the modem without
> interfering with the trading program's own information stream?
Assuming it turns into IP data at some satage then you can get several
programs - some are even free! - that will sniff IP packets and either
log them to a file or display them on a screen. This can run in
background with only slight impact on performance. So you can
use Popen to capture the output and analyze it.
Search for 'packet sniffer' on Google. Ethereal is one well known
and powerful one, but there are others which may be simpler to
use. Here is one web site that lists a few:
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