I am still looking on how to have their browsers/proxy server to refresh soon. or trick their browser that there is new content already so they need to get the new copy.
i am thinking of changing the directoryindex and point to index.php -such that it changes the inode,mtime and filesize. then inside index.php i have:
<?
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
call_the_original_html_file.
?>
how to i call the original html file from index.php? i mean, index.php will load first then it will call/load html file.
thanks,
jake
--- On Wed, 7/9/08, Hubert Grzeskowiak <linux-admin-ml@xxxxxxxxxxxx> wrote:
> From: Hubert Grzeskowiak <linux-admin-ml@xxxxxxxxxxxx>
> Subject: Re: apache 2 expiresdefault
> To:
> Date: Wednesday, July 9, 2008, 4:17 AM
> Glynn Clements wrote:
> > Jake Ravenwood wrote:
> >
> >> i have a linux/apache2 newly setup. i put it
> online last week but
> >> after a day, i got a lot of email/phone complaints
> saying they are
> >> seeing old pages/old contents of the site. My site
> changes
> >> frequently(daily). after checking i found that
> apache has
> >> ExpiresDefault A2419200 which spells to 28days. I
> changed it to
> >> ExpiresDefault A0 and reload Apache. Some
> end-users are now seeing the
> >> new content but some are still seeing the old
> pages. What else i
> >> missed?
> >
> > If someone already has a cached version with the
> 28-day expiry, their
> > web browser (or an intermediate proxy) is likely to
> keep using it
> > until it expires or until they force a reload. Nothing
> you do to your
> > web server can force those existing copies to expire
> prematurely.
> >
>
> hi Jake,
> try adding those meta tags to your (x)html files (into the
> head part of
> course):
>
> <meta http-equiv="expires"
> content="-1">
> <meta http-equiv="pragma"
> content="no-cache">
> <meta http-equiv="cache-control"
> content="no-cache">
>
> this won't force your clients to reload the page, but
> it should suppress
> future caching. it's just html, so sure not every
> browser will interpret
> that.
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