How to check varnish configuration syntax
We can check the syntax of varnish configuration, through command line. This will be very helpful while doing custom configurations in varnish.
The command for checking the syntax is,
#varnishd -C -f /usr/local/varnish/etc/varnish/default.vcl
If everything is correct, varnish will then dump out the generated configuration. Otherwise you’ll get an error message pointing you to a specific line number.