What is the meaning of _ENV["HTTP_X_VARNISH"] values I get using phpinfo()

StackOverflow https://stackoverflow.com/questions/20511348

  •  31-08-2022
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Question

When I run echo phpinfo() in root of application(Magento). I get _ENV["HTTP_X_VARNISH"] 1321634895

This means varnish cache is installed on server but what does 1321634895 value means. Do we have some default value for the same.

Please help me to understand this.

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Solution

HTTP_X_VARNISH is just an internal ID of Varnish used to reference requests. You can use it for debugging purposes as the documentation says.

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