Varnish Administration Console/Custom Statistics (VAC and VCS) (Redhat)
Varnish Administration Console (VAC) is a single point of control for all Varnish Cache server administration. VAC provides UI and API administration and is most commonly used in production environments where real-time graphs and statistics help identify any bottlenecks within your Varnish Cache servers. This AMI also provides Varnish Custom Statistics (VCS) which is a real-time statistics engine allowing you to aggregate, display and analyze user web traffic. VCS will not work unless you have a subscription for Varnish Cache Plus (VCP).
Varnish Cache (Plus) group configuration management
Super Fast Purger
Access the application via a browser at http://public_dns:80 for VAC and http://public_dns:6555 for VCS. A default password for username vac is the instance id, which you can find by using SSH to the machine and look at /root/vac_init_password.
How VAC works
How VCS works