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Amir Guest
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Posted: Mon Aug 21, 2006 6:25 pm Post subject: Knowing a client PC working with internet ! |
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Hi anyone,
I'm working on a client/server app by delphi7,
and i want to know how Sysop pc know a client pc is working with internet, my mean is when a user on a client pc want to open a website or chatting with someone or downloading something,
that mean is user on client pc is working with the internet, now
in this status, client pc must send a report to server app
(Sysop PC) that it's mean user is working with internet.
How can i know this status?
Any tips is interested |
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Gerhard Venter Guest
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Posted: Tue Aug 22, 2006 2:13 am Post subject: Re: Knowing a client PC working with internet ! |
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"Amir" <cruz_hei (AT) yahoo (DOT) com> wrote in message
news:44e9b454$1 (AT) newsgroups (DOT) borland.com...
| Quote: |
Hi anyone,
I'm working on a client/server app by delphi7,
and i want to know how Sysop pc know a client pc is working with internet,
my mean is when a user on a client pc want to open a website or chatting
with someone or downloading something,
that mean is user on client pc is working with the internet, now
in this status, client pc must send a report to server app
(Sysop PC) that it's mean user is working with internet.
How can i know this status?
Any tips is interested
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Most probably they are using a packet sniffer that listens to all network
packets. TCP packets have a source and destination IP and depending on the
protocol they can guess fairly accurately what is going on. Install Ethereal
and you can see for your self what is going on. |
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