Top "Varnish" questions

Varnish is an open source reverse HTTP proxy with extensive caching abilities, i.e. a web accelerator.

Weird Varnish 503 error - what does this mean?

My online whiteboard application has been working previously, but for whatever reason, it no longer works. Now it shows a 503 …

varnish
Configure multiple sites with Varnish

We have a server which needs to serve multiple domains though varnish e.g. example1.com, example2.com and example3.…

configuration caching varnish
Error 503 Backend fetch failed

I have this error in my site Error 503 Backend fetch failed Backend fetch failed Guru Meditation: XID: 526707 Varnish cache server …

php runtime-error varnish varnish-vcl http-status-code-503
How to clear complete cache in Varnish?

I'm looking for a way to clear the cache for all domains and all URLs in Varnish. Currently, I would …

caching varnish varnish-vcl varnish-4 clear-cache
Best way to cache RESTful API results of GET calls

I'm thinking about the best way to create a cache layer in front or as first layer for GET requests …

api rest caching memcached varnish
Memcache(d) vs. Varnish for speeding up 3 tier web architecture

I'm trying to speed up my benchmark (3 tier web architecture), and I have some general questions related to Memcache(d) …

memcached varnish
Varnish purge using HTTP and REGEX

I want to purge Elements of my varnish using HTTP. This http call is triggered from a backend server behind …

curl varnish purge
How to setup Varnish logging?

I want to get Varnish to log requests. I found the command varnishlog -a -w /var/log/varnish.log, but …

logging varnish
How to Set Varnish Cache-Control Headers

I am hoping someone can advise on the proper method for getting Varnish to send cache-control headers. Currently, my configuration …

http-headers cache-control varnish varnish-vcl
Where is the varnish configuration file?

I have just installed varnish and its ready to serve web pages. Problem is that we are hitting open files …

webserver configuration-files varnish