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Special Forums IP Networking I would like to monitor network traffic for a computer on my network Post 302998094 by cb88 on Thursday 25th of May 2017 12:42:28 AM
Old 05-25-2017
Quote:
Originally Posted by Corona688
pentium 4 is a bit old, unless it has 1g ram or more.
It's still more than 1-2 orders of magnitude faster than the original Pi. And probably 2-5x faster than a Pi2.

That said you could get a $2 USB Ethernet adapter on ebay ... and plug it into the pi and experiment with that. The Pi will probably show your internet down since it's peripherals all hang off it's overloaded USB bus.

The P4 ought to handle it with ease... as far as that goes lots of people have used much slower machines for routers/firewalls. Rather than using wireshark which is a rather heavy handed but comprehensive solution, you just do as suggested here with dnsmasq How to log all my DNS queries? - Unix & Linux Stack Exchange

And filter the log for dnsmasq output.... just about as good as wireshark and probably more performant than running without the system as now your dns queries are cached by a local machine. The TCPDUMP answer there is also good.

If you get it working on the P4 getting a mini PC is probably a decent idea... as the power savings alone will pay for itself. A P4 computer costs between $100-300 a year to leave running vs the mini PC costing about 10 bucks a year.

Last edited by cb88; 05-25-2017 at 01:49 AM..
 

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LWP::Debug(3)						User Contributed Perl Documentation					     LWP::Debug(3)

NAME
LWP::Debug - deprecated DESCRIPTION
LWP::Debug used to provide tracing facilities, but these are not used by LWP any more. The code in this module is kept around (undocumented) so that 3rd party code that happen to use the old interfaces continue to run. One useful feature that LWP::Debug provided (in an imprecise and troublesome way) was network traffic monitoring. The following section provide some hints about recommened replacements. Network traffic monitoring The best way to monitor the network traffic that LWP generates is to use an external TCP monitoring program. The Wireshark program (<http://www.wireshark.org/>) is higly recommended for this. Another approach it to use a debugging HTTP proxy server and make LWP direct all its traffic via this one. Call "$ua->proxy" to set it up and then just use LWP as before. For less precise monitoring needs just setting up a few simple handlers might do. The following example sets up handlers to dump the request and response objects that pass through LWP: use LWP::UserAgent; $ua = LWP::UserAgent->new; $ua->default_header('Accept-Encoding' => scalar HTTP::Message::decodable()); $ua->add_handler("request_send", sub { shift->dump; return }); $ua->add_handler("response_done", sub { shift->dump; return }); $ua->get("http://www.example.com"); SEE ALSO
LWP::UserAgent perl v5.18.2 2012-01-13 LWP::Debug(3)
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