Per Buer

Per Buer

Latest Articles

Upgrading from Varnish Cache 2.1 to 3.0

Andreas Plesner Jacobsen wrote an guide for upgrading Varnish Cache 2.1 to 3.0. Tollef pulled the document into the...
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VCL Varnish Cache Varnish Software

Conditional requests versus cache invalidation

If your content ever changes you’ll need some way to make sure the updated content reaches the users. The traditional...
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Origin protection with Varnish Cache

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Ratelimiting the varnishlog

Varnish is typically very busy, running several thousands of transactions per second. Combine this with the rather...
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Proper sticky session load balancing in Varnish

The documented answer - use the client director
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Grace in Varnish 4

STALE-WHILE-REVALIDATE SEMANTICS IN VARNISH
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