hello i was wondering if is it possible to "know" where someone over a LAN is surfing?? say, i''m in a lan with 2 other ppl for instance could i know from my computer where they surf is it possible at all??? thanks

In Netbus and stuff like that (Trojans) I think they have a screen watch feature where you can watch (in real time), if you have a fast enough connection (not a prob with a LAN), somebody surfing and stuff. Just do a search for it and you''ll find it somewhere, just don''t use it for malicious purposes

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"We are the music makers, and the dreamers of the dreams."
- Willy Wonka

if you are in a LAN, every computer can see packets from other
computers. You just need some kind of sniffer(packet capturer) and you can read from those packets where are they
surfing...if you have Linux finding sniffer wont be hard, if
you have Windowze program IRIS is good enough
oh yes and...sniffing around is bad
have fun

i''m not talking about trojans with trojans you could just do anything you want...

all the kewl thing is that you see it from your comp...

oh....so i see to where comp#2(for instance) is connected..
i mean i see the dest of a specific socket
and this is the way to know where the user in comp#2 surves?

am i right?

you got your own computer(c1) and then computer from your friend(c2) on LAN that connects through router to the INET. When you friend connects to some site ..for example www.gamedev.net, his c2 sends packets to that site. You can collect and see this packets b''cos you are on the same network. When you open this packets you will see in them destination and source(and bunch of other stuff that are part of the protocol).So...u can see packet destination and voila..u know where your friend is surfing

3|iT3 H@Ck3r ;]

hmm i get it...
well....how do i monitor c2''s packets??

it sounds easy but it''s not
well the monitoring thingy....

You can only do this if you''re connected using a Hub. Because a hub blasts packets b/w all the ports...and just lets who-ever wants to respond do so. If you''re using a switch then you won''t be able to sniff, because a switch delivers the packets to the correct computer. This is why a 10 Mbit hub is 10Mbit across the entire hub, and in a 10 Mbit switch each port is 10 Mbit.
Although all bets are off if you''re the gateway to the internet, then all the packets go through your computer...so you can sniff all you want.

Epolevne

well

well i''m gonna use a hub on my next lan party...so i''ll check it out..

but how do i know if the user is connected to the net with a switch or a hub?

so i''m still don''t know how to sniff the packets..

i just want to "look at" the packets to do direct''em to my comp ofcourse

Download a packet sniffer. Everything will be done by IP or MAC address, so you''ll need to know which computers have what IP or MAC addresses. Each packet will have a "from" and "to" portion, some misc info, and then the information itself. If you get a good sniffer what you''re looking for should be obvious.

Also, everything is done by IP, not DNS names. So you''ll need to take the IPs you get from the sniffer (eg: 63.209.56.35) and do a reverse lookup to find the name you''re framiliar with (www.gamedev.net). You might get lucky and the sniffer might do this for you, but it''s unlikely.

Epolevne

If you wanna play Big Brother, the best thing is to use Trojan (like the NEtbus thingy, or BackOrifice).

But if you don''t even understand what IP, MAC, and other things like that mean, I think you should give up coding it and start reading books about IP and all the basic stuff, then come back and do it. Anyway there are nice links and tutorials on a lot of nice sites. Try astalavista.box.sk (or neaorder.box.sk ... well, look for yourself)

Anyway, why on earth do you want to know what your little comrads are doing ??? If you are an admin, then you would have a router able to do the job nicely.
If not, WTF ?

youpla :-P