API Reference

A Varnish instance
A cache group is a collection of Varnish Cache instances that have identical configuration

The VCL entity that is related to your Varnish Configuration Language
The Varnish configuration parameters managed by VAC
The Bans that you can issue to Varnish

A user that has access to VAC through the API or UI
The Messages that the VAC keeps, which log all the interactions

VCL snippets managed by the VAC and that can used in a VCL
VAC related API's, Authentication, License and others