Mailing List Archive

By default, Varnish doesn't cache any responses where cookies are
involved (in your case the php session id). There are a few messages
in the mailing list archive that explain how to override this behavior.

Jeff


On Oct 22, 2007, at 11:27 AM, Dan Deshayes wrote:

> Hello,
> I'm having som problems getting my varnish to work as i want to.
> I'm running a minimal config:
>
> backend default {
> set backend.host = "<host>";
> set backend.port = "<port>";
> }
>
> sub vcl_recv {
> if (req.request == "GET" && req.url ~ "\.(gif|png|css|js)$") {
> lookup;
> }
> }
>
> When I go to the page it starts caching all the files and on reload
> all
> the files are delivered from varnishd.
> But when i go to a certain php on the page it forwards every
> request to
> apache and when going back to one of the former working tabs they
> also go
>
> I put a few expire-lines in my virtualhost-config:
> ExpiresActive On
> ExpiresByType image/gif "access plus 3 hours"
> and so on, but it won't work.
>
> Here are two examples of the headers tx:ed and rx:ed:
> http://www.nangilima.se/varnishd/working.txt
> http://www.nangilima.se/varnishd/nonworking.txt
>
> I've noticed that in the working example apache provides last-modified
> and a few other things in the response, but why doesn't it do that in
> the nonworking?
> Its the same virtualhost with all the same settings but
> another .php file.
> I'm always using fully reload when testing so the browsers cache
> doesn't
> lead me astray.
>
> Thanks in advance
> Regards Dan
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at projects.linpro.no
> http://projects.linpro.no/mailman/listinfo/varnish-misc
>

>

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-----Original Message-----


> From: varnish-misc-bounces at projects.linpro.no
[mailto:varnish-misc-bounces at projects.linpro.no] On Behalf
> Of Dan Deshayes
> Sent: Monday, October 22, 2007 4:27 AM
> To: varnish-misc
> Subject: varnishd config.
>
> When I go to the page it starts caching all the files and on reload
all the files are delivered from
> varnishd.
> But when i go to a certain php on the page it forwards every request
to apache and when going back to
> one of the former working tabs they also go
>
> From your headers I saw PHPSESSIONID, in that case you'll need some
logic to have it handle Auth or
> cookies. Here's my block on that:

For Auth/Cookies you need to tell Varnish to cache it, since the things
you're not caching are PHP pages, this is likely the issue. Here's the
block from my config:

##############
# AUTH #
##############
sub vcl_recv {
if (req.request != "GET" && req.request != "HEAD") {
if (req.request == "PURGE") {
if (!client.ip ~ purge) {
error 405 "Not allowed.";
}
lookup;
}
pipe;
}
if (req.http.Expect) {
pipe;
}
if (req.http.Authenticate || req.http.Authorization) {
pass;
}
# We only care about the "__ac.*" cookies, used for
authentication
if (req.http.Cookie && req.http.Cookie ~
"__ac(|_(name|password|persistent))=") {
pass;
}
lookup;
}

See if that helps, I'm not 100% clear on all of the syntax in the last
sub-block, or if it's necessary in my case - I too am still learning. ;)

P