Varnish HTTP Cache: modify headers (by damian)

/etc/varnish/default.vcl | /etc/varnish/user.vcl

sub vcl_deliver {
    remove resp.http.Via;
    remove resp.http.X-Varnish;
    remove resp.http.Age;
    remove resp.http.Server;
    remove resp.http.Content-Length;
    remove resp.http.Accept-Ranges;
    #set resp.http.Server = "TFE";
    #set resp.http.X-Powered-By = "Curiosity";
    #set resp.http.X-Frame-Options = "DENY";
}