configuration - Configure multiple sites with Varnish -

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we have server needs serve multiple domains though varnish e.g. example1.com, example2.com , example3.com

our current .vcl file looks this:

sub vcl_recv {   set req.http.host = "example1.com";       lookup; }

how set correct req.http.host correct incoming request?

you can support multiple frontend domains way:

 backend example1 {      .host = "backend.example1.com";      .port = "8080";  }  backend example2 {       .host = "backend.example2.com";       .port = "8080";  }  sub vcl_recv {     if (req.http.host == "example1.com") {         #you need following line if backend has multiple virtual host names         set req.http.host = "backend.example1.com";         set req.backend = example1;         return (lookup);     }     if (req.http.host == "example2.com") {         #you need following line if backend has multiple virtual host names         set req.http.host = "backend.example2.com";         set req.backend = example2;         return (lookup);     }  }

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