RE: [squid-users] How to do disable client caching ( Internet Expoloer ) in Reverse proxy mode ?

I would try operating the origin website on SSL, (or try running Squid
as an HTTP -> HTTPS bridge - but probably too complicated). I believe
that if content is delivered by SSL, it is not cached by the browser in
a way that is readable...

Just my 2c worth...
Stephen

-----Original Message-----
From: Michael Alger [mailto:squid@mm.quex.org]
Sent: 04 May 2007 12:44
To: squid-users@squid-cache.org
Subject: Re: [squid-users] How to do disable client caching ( Internet
Expoloer ) in Reverse proxy mode ?

On Fri, May 04, 2007 at 07:12:34PM +0900, Seonkyu Park wrote:
> I'm using squid for reverse proxy for 'flv' progressive download.
>
> As you know, 'flv' is flash live video files. ( youtube... etc )
>
> I want client's pc has not flv files.
>
> But automatically 'flv' file saves in Internet Explorer ( C:\Documents

> and Settings\Owner\Local Settings\Temp )
>
> How to do disable client caching with squid ?

Why do you want to? If it's to stop people from being able to copy the
files, you'll fail. Otherwise...

> ( ie: meta tag swap .. Can do this squid ?
> <META http-equiv="Expires" content="-1"> <META http-equiv="Pragma"
> content="no-cache"> <META http-equiv="Cache-Control"
> content="No-Cache">
> )

Squid can only remove headers, to the best of my knowledge. To add them,
you need to do it on the origin server. You say you're using squid as a
reverse proxy, so you'll need to configure your web server to set the
appropriate HTTP headers when serving .flv files; you can't use HTML
<meta> tags, they need to be real HTTP headers.
(I'm guessing .flv files don't have anywhere to put such things, but it
seems like a fairly safe guess.)

Even with this done, it's posible MSIE will still save the files as part
of how it operates internally. I'm not certain about that, though.


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Received on Fri May 04 2007 - 06:04:50 MDT