local locker = true
local attempted_login = true
local password_server = 19 -- change to the ID of your password server computer
rednet.open("top") -- change to the side your rednet modem is on
while locker do
attempted_login = false
term.clear()
term.setCursorPos(1,1)
print("Welcome to a USERS PC : Roaming Profile Enabled")
print("What would you like to do?")
print("[1] Login (*)")
print("[2] Shutdown")
write("> ")
local input = read()
if input == "2" then
  os.shutdown()
elseif input == "1" then
  attempted_login = true
  print("Please login...")
  write("Username: ")
  local username = read()
  write("Password: ")
  local password = read("*")
  rednet.send(password_server, username)
  senderId, message, distance = rednet.receive(5)
  if password == message then
   locker = false
   term.clear()
   term.setCursorPos(1,1)
   print("Welcome ", username)
  else
   print("Not authorised.")
   sleep(1)
  end
else
  print("Command not recognised...")
  sleep(2)
end
end