how storing objects for a given time, regardless of expire info from back-end?

[Richard Chiswell]

You'll want something like:

sub vcl_fetch {
unset obj.http.Expires;
unset obj.http.Cache-Control;
set obj.ttl = 60m; // cache for 60 minutes within Varnish
set obj.http.Cache-Control = "public, max-age=2678400"; // cache for 31 
days at User end
deliver;
}

However, depending on exactly what you want to cache for who and for how 
long (do you want to cache things for people with cookies? do you really 
want to cache a 1Gb .avi file within Varnish? etc), the configuration 
can get a bit complex.

Rich

On 12/04/2010 17:18, Dirk Taggesell wrote:
> Hi all,
>
> I am just trying to get familiar with varnish. I installed the latest
> version 2.1.0 and with the minimal config it works as intended:
>
> backend default {
>      .host = "backend.example.com";
>      .port = "80";
> }
>
> But the back-end sends an expires-header of "0", thus varnish tries to
> fetch the item again from the back-end for every client requesting it.
> So I need a simple rule that tells varnish to just cache every object
> for say 2h, regardless what the back-end says. I just have to prevent
> varnish to ask the back-end at every request.
>
> Unfortunately the config language is not entirely self-explaining. and
> most expamples on the web won't work (too old?).
> Can anyone help me?
>
>