Lua TCP/IP简易客户端服务器连接

我正在寻找一种简单的Lua客户端-服务器连接。由于糟糕的在线文档，我相当无助。我在stackoverflow上找到了两个线程，但它们没有提供太多帮助。现在我有了以下代码：

客户端：

local socket = require("socket")
local host, port = "192.168.100.47", 51515
local tcp = assert(socket.tcp())

tcp:connect(host, port);
tcp:send("hello world\n");

while true do
    local s, status, partial = tcp:receive()
    print(s or partial)
    if status == "closed" then
      break
    end
end

tcp:close()

服务器：

local socket = require("socket")
local server = assert(socket.bind("*", 51515))
local tcp = assert(socket.tcp())

print(socket._VERSION)
print(tcp)

while 1 do

  local client = server:accept()

  line = client:receive()
  client:send("it works\n")

end