是喔，每月都會像這樣...
Your free host orguss..... will expire
in 7 days due to account inactivity.

orguss....... was last updated on 2013-05-24 23:54:54. Free Dynamic DNS
hosts must be updated by logging into your account on our website and clicking
update, this must be done every 30 days. If you are using the Dynamic Update
Client and your IP address has not changed within the past 30 days, you must
manually update it to prevent them from being removed from our system.