where is varnish log
As root, run command varnishncsa to see the log
ref: http://serverfault.com/questions/306240/where-can-i-find-varnish-log-files-var-log-varnish-is-empty
As root, run command varnishncsa to see the log
ref: http://serverfault.com/questions/306240/where-can-i-find-varnish-log-files-var-log-varnish-is-empty