You’ve read through the tutorial. You should have Varnish up and running. You should know about the logs and you should have a rough idea of what VCL is. Next, you might want to have a look at The Varnish Users Guide, where we go through the features of Varnish in more detail.
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Licensed under the BSD-2-Clause License.
https://varnish-cache.org/docs/6.5/tutorial/now_what.html