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How to retrieve a client's IP adress?

Posted on 2003-12-09
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Last Modified: 2008-02-01
Hi!

I want to know if there is a way to retrieve a visitors IP adress using JavaScript.
I could also use JSP if that works better.

Please advise.

Regards,
David
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Question by:larsan
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LVL 3

Expert Comment

by:mrh30
ID: 9903847
In JSP it's quite easy:

<%
out.print( request.getRemoteAddr() );
out.print( request.getRemoteHost() );
%>
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Author Comment

by:larsan
ID: 9904298
That works on a "standalone" page, but this page in particular is
included into another jsp, and the only IP I'm getting is that of the current server.

Sorry for not mentioning this earlier.

Regards,
David
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Accepted Solution

by:
mrh30 earned 500 total points
ID: 9904312
That's a bit more tricky, since the request is indeed coming from within your server when you do the include.  It's a sort of chain going on.

There might be a way for the 'parent' jsp to find it and then pass the IP as a parameter to the child in some way?
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Author Comment

by:larsan
ID: 9904332
Thanks, I'll try that.

Do you know how 'intense' this request is on the server, as the parent is used to present almost everything else on the site.

Pls e-mail me if you do.

/David
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LVL 3

Expert Comment

by:mrh30
ID: 9904360
Sorry I've not got much experience of JSPs.  We tend to develop in Perl/Javascript mainly.  I only know a few little snippets about JSPs.
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Author Comment

by:larsan
ID: 9904410
OK. Thanks anyway!
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