gistfile1.txt

sub vcl_hash {
     hash_data(req.url);
     if (req.http.X-newhash) {
         hash_data(req.http.X-newhash);
     }
     if (req.http.host) {
         hash_data(req.http.host);
     } else {
         hash_data(server.ip);
     }
     return (hash);
}