Allowed = {"iWafflecious"}
msgg = "lol." --Message you have to say to initiate the private server

s = Instance.new("StringValue",game.Lighting)
s.Name = "LockServ()"
s.Value = [[

game.Players.PlayerAdded:connect(function(plr)
wait(.1)
plr:Kick()
end)

]]

game.Players.LocalPlayer.Chatted:connect(function(msg)
for i,v in pairs(Allowed) do
if v:lower() == game.Players.LocalPlayer.Name:lower() then
if msg:lower() == msgg:lower() then
loadstring(game.Lighting:FindFirstChild("LockServ()").Value)()
end end end end)