Log in cannot be done by expiring the password.

The following messages are displayed and when log in cannot be done,it does by cutting the expiration date of the password.

Your password has expired. Choose a new password.
You are required to change your LDAP password immediately.
WARNING: Your password has expired.
You must change your password now and login again!
Changing password for XXXXXX.
Please visit https://portal.g.gsic.titech.ac.jp/ to change your password.
passwd: Permission denied
Connection to login-t2.g.gsic.titech.ac.jp closed. 

It is not possible to change in an interactive node in the password. Please change the password from portal.

TSUBAME2.0利用ポータル(https://portal.g.gsic.titech.ac.jp/portal/)When you forget the password of TSUBAME2.
  1.It is log in the Tokyo Institute of Technology portal. 
  2.Selected the TSUBAME2.0 use portal.
(The TSUBAME2.0 use portal is automatically logged in.) 
  3. 利用状態変更 is clicked from the menu
  4. Selected 仮パスワード
  5. Mail reaches the registered address. 
  6. URL in mail is clicked
  7.The tentative password written in mail is input,and new password is input twice.
As a result, it becomes possible to use TSUBAME.