Could the proxy server be caching requests? I.E., if the proxy server
gets a request like "http://blah.blah/something/page.jsp", maybe it's
returning the same page that it did before when it got that request, even if
it's coming from a different user/session.
Just a thought...
Tony
-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of Miles
Sabin
Sent: Thursday, October 07, 1999 9:57 AM
To: [EMAIL PROTECTED]
Subject: Re: Proxy with servlet
Amy Wan wrote,
> I have a client and a proxy server outside the firewall.
> The client dails in the proxy server. The proxy server
^^^^^
Huh? What sort of proxy are you talking about here? An
HTTP proxy?
> then connects to a web server running servlet inside
> the firewall. Then the servlet processes the client
> request and send something back to the client thru the
> proxy server again.
>
> I have tried the above arhitecture, it doesn't work.
> The proxy somehow doesn't connect / talk to the server
> inside the firewall. I tried the client dial in with
> direct link to the server (that runs servlet) from the
> firewall. It works this way.
Sounds to me like a broken/misconfigured proxy.
> I wonder if this is the servlet problem. Does the
> servlet support request from proxy server or it just
> doesn't care at all?
As far as the origin server is concerned (the one behind
the firewall) a request from the proxy server should
look almost exactly the same as a direct request from
the client. Under normal circumstances the only
differences will be that the remote IP address will be
that of the proxy rather than the client and the proxy
will have added a Via: header. So, no, servlets won't
normally be aware of the presence of a proxy (unless
they examine the Via: header or the remote address).
Of course, your firewall may be doing things to the
traffic as well, but that's going to be very site
specific.
I suggest you have a chat with your sysadmin.
Cheers,
Miles
--
Miles Sabin Cromwell Media
Internet Systems Architect 5/6 Glenthorne Mews
+44 (0)181 410 2230 London, W6 0LJ
[EMAIL PROTECTED] England
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