Guillaume Quintard

Guillaume Quintard

Director of Technical Enterprise accounts at Varnish Software

Request coalescing and other reasons to use Varnish as origin shield

The single most frequent question I get from people discovering Varnish is "Do you support request collapsing?". And I...

The best way to completely purge a Varnish cache

It's cargo-cult fighting time! Today, we are going to look at a ban expression that you probably have used, and maybe...

Web Application Firewall in the Varnish mainline

As you probably know, Varnish has always been a very secure piece of software but so far, that safety only applied to...

novcl: an alternative to VCL

If you've read a few of my blog posts, you probably already know I love the VCL (Varnish Configuration Language) idea,...

Howto: Respond to probes

Two years ago, I wrote an article about how probes work in Varnish (it's a great article - fun, informative... go read...

PSA: You don't need that many regexes

HTTP is an intrinsically textual protocol, with relatively few rules. So it makes sense for Varnish to provide you with...