Look at the headers. If there are two numbers next on the X-Varnish header it's a cache hit. One number - cache miss.
On Wed, Jun 11, 2014 at 10:07 PM, Diego Rabatone <[email protected]> wrote: > Thanks Per, > > I have read the link you suggested and it made all more clear to me now. > > It looks that my varnish is now "working", but I don't know if it is > caching or now, how to test if it is a cached version or if it is just a > redirect? > > Thanks again. > > > -------------------------------- > Diego Rabatone Oliveira > diraol(arroba)diraol(ponto)eng(ponto)br > Identica: (@diraol) http://identi.ca/diraol > Twitter: @diraol > > > 2014-06-11 16:26 GMT-03:00 Per Buer <[email protected]>: > > Hi Diego. >> >> What you need to understand is how the server which you are embedding the >> content from works. It will not serve up the right content unless you give >> it the right Host: header ( >> https://www.varnish-software.com/blog/getting-virtual-hosts-right-varnish-cache >> explain how virtual hosts actually works). >> >> The thing you are missing is something like this: >> >> sub vlc_recv { >> if (req.http.host ~ "infographics.estadaodados.com") { >> set req.http.host = "example.com"; >> # could also override req.url here - but better to keep req.url the >> same (for simplicity). >> set req.backend_hint = infograph; >> } >> >> >> >> On Wed, Jun 11, 2014 at 8:10 PM, Diego Rabatone <[email protected]> >> wrote: >> >>> Hi James and Per, >>> >>> thank you very much for answering my question. >>> >>> First of all, I have the permission to embed the content. All embeds are >>> from websites that are offer the service of building data visualizations >>> and infographics, me and my team use them to build our products and they >>> all have embeding options. >>> >>> I like the option to only revalidate the contet, instead of refetching >>> it, but I didn't understand completly how could I do it Per. >>> >>> I will try and example, tell me if I'm making any conecptual mistake. >>> >>> My cached domain is: *estadaodados.com <http://estadaodados.com>* , >>> this is were I have full control and where my Varnish is. >>> >>> On *estadaodados.com/iframe <http://estadaodados.com/iframe>* I want to >>> embed, using an Iframe, a page from *example.com <http://example.com>*, >>> exactly this page: *example.com/123* <http://example.com/123> >>> >>> So, instead of using *<iframe src="http://example.com/123 >>> <http://example.com/123>"></iframe>* >>> I should set *example.com <http://example.com>* as a *backend* on my >>> varnish with: >>> >>> backend infograph { >>> .host="example.com" >>> } >>> >>> And set this vcl_recv rule: >>> >>> sub vlc_recv { >>> if (req.http.host ~ "infographics.estadaodados.com") { >>> set req.backend_hint = example.com >>> } >>> >>> And then use the iframe with: >>> >>> >>> *<iframe src="infographics.estadaodados.com/123 >>> <http://infographics.estadaodados.com/123>"></iframe> * >>> >>> That's it? >>> >>> Thanks for your attention, >>> >>> Best, >>> >>> >>> -------------------------------- >>> Diego Rabatone Oliveira >>> diraol(arroba)diraol(ponto)eng(ponto)br >>> Identica: (@diraol) http://identi.ca/diraol >>> Twitter: @diraol >>> >>> >>> 2014-06-10 3:55 GMT-03:00 Per Buer <[email protected]>: >>> >>> Hi Diego, >>>> >>>> >>>> On Tue, Jun 10, 2014 at 1:24 AM, Diego Rabatone <[email protected]> >>>> wrote: >>>> >>>>> Hi friends, >>>>> >>>>> I am new at the caching World, and I have looked for some solution to >>>>> cross-domain caching, but I have not found any solution. >>>>> >>>>> I have a blog that embed some dataviz webservices, and I want to cache >>>>> this content that I insert using Iframes. >>>>> The blog is: http://blog.estadaodados.com there is any way of doing >>>>> this? >>>>> >>>> >>>> Absolutely. It is a pretty good way to make sure that the content you >>>> embed performs well in addition to lessening the load on the server you are >>>> embedding content from. >>>> >>>> >>>>> At this moment I have a Varnish + nginx + php-fpm setup on a dev >>>>> server (not the link that I posted), and it seems to be working ok, but >>>>> there is no caching of the Iframes. >>>>> >>>> >>>> No. This is expected. In order to cache those iframes you would need to >>>> set up the server you embedding content from as a backend on your varnish >>>> and preferably give it a new hostname. Then, in the vcl_recv you replace >>>> req.http.host to the original hostname and set the backend. Then regular >>>> caching rules will be applied. In Varnish 4.0 you could set the cache time >>>> to one hour and you could add a keep of maybe a couple of hours. That will >>>> enable IMS so you wouldn't have to refetch the content, only revalidate it. >>>> >>>> >>>> As James said, should make sure you have the authors permission, but if >>>> you do it through Varnish at least there won't be much of a impact on their >>>> server when you do this. >>>> >>>> Cheers, >>>> >>>> Per. >>>> >>>> -- >>>> <http://www.varnish-software.com/> *Per Buer* >>>> CTO | Varnish Software >>>> Phone: +47 958 39 117 | Skype: per.buer >>>> We Make Websites Fly! >>>> >>>> Winner of the Red Herring Top 100 Global Award 2013 >>>> >>>> >>>> >>> >> >> >> -- >> <http://www.varnish-software.com/> *Per Buer* >> CTO | Varnish Software >> Phone: +47 958 39 117 | Skype: per.buer >> We Make Websites Fly! >> >> Winner of the Red Herring Top 100 Global Award 2013 >> >> >> > -- <http://www.varnish-software.com/> *Per Buer* CTO | Varnish Software Phone: +47 958 39 117 | Skype: per.buer We Make Websites Fly! Winner of the Red Herring Top 100 Global Award 2013
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