default.vcl for version 2.x

default.vcl

backend au92 {
    .host = "www.au92.com";
    .port = "80";
    .connect_timeout = 600s;
    .first_byte_timeout = 600s;
    .between_bytes_timeout = 600s;
    .max_connections = 800;
}


acl purge {
    "localhost";
    "127.0.0.1";
    "192.168.1.0"/24;
    "60.247.127.0"/24;
}

sub vcl_recv {
        if (req.http.x-forwarded-for) {
            set req.http.X-Forwarded-For =
               req.http.X-Forwarded-For ", " client.ip;
        } else {
            set req.http.X-Forwarded-For = client.ip;
        }
        if (req.request == "PURGE") {
            if (!client.ip ~ purge) {
                   error 405 "Not allowed.";
            }
            return (lookup);
        }

        if (req.http.host ~ "^(www.)?au92.com") {
          set req.backend = au92;
        } else {
          error 404 "test Cache Server";
        }

        if (req.request != "GET" &&
            req.request != "HEAD" &&
            req.request != "PUT" &&
            req.request != "POST" &&
            req.request != "TRACE" &&
            req.request != "OPTIONS" &&
            req.request != "DELETE") {
          return (pipe);
        }
        if (req.http.Expect) {
            return (pipe);
        }
        if (req.http.Authenticate || req.http.Cookie || req.url ~ "\.(php|cgi)($|\?)") {
            return (pass);
        }
        if (req.request == "GET" && req.url ~ "\.(txt|js|jpg|gif|png|bmp|css|html|htm|ico)$") {
            return (lookup);
        }
        return (lookup);
}

sub vcl_hit {
  if (req.request == "PURGE") {
    set obj.ttl = 0s;
    error 200 "Purged.";
  }
  return (deliver);
}

sub vcl_miss {
  if (req.request == "PURGE") {
    error 404 "Not in cache.";
  }
  set bereq.url = regsub(req.url, "\?.*", "");
  return (fetch);
}

sub vcl_fetch {
  if (!beresp.cacheable || beresp.http.Set-Cookie)
  {
    return (pass);
  }
  if (req.request == "GET" && req.url ~ "\.(txt|js|jpg|gif|png|bmp|css|html|htm|ico)$") {
    set beresp.ttl = 30d;
  }
  else {
    set beresp.ttl = 3d;
  }
  return (deliver);
}

sub vcl_hash {
    set req.hash += req.url;
    if (req.http.host) {
        set req.hash += req.http.host;
    } else {
        set req.hash += server.ip;
    }
    return (hash);
}

sub vcl_pipe {
    return (pipe);
}

sub vcl_pass {
    return (pass);
}

sub vcl_deliver {
  remove resp.http.X-Varnish;
  remove resp.http.Via;
  return (deliver);
}