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Classroom Touble shooting

When forgetting own password.

Bring your student ID and apply to have your user authentication notice reissued at the Student Service Counter (your password will be reset)

Or, you can reset by yourself.

See more detail is here(you need to register recovery mail address and matrix code.)

When cannot save the file/How to delete the unneccessary file?

  1. The disc capacity of the practice account is 5 GB. Exceeding this capacity will disable login and file saving.

  2. Log in to your personal settings page to confirm the file size and the remaining capacity.

  3. Save backup copies (files) on your own removable media.
  4. Delete unnecessary files. In Linux, moving files to the trash bin instantly deletes these files. In Windows, move files to the trash bin and click Empty trash bin to completely delete these files. Also, delete your browsing history from Firefox and IE.
  5. For Linux, delete the files by using the following commands.
See the list of the files
% ls 
% ls -la　　　(with  a you can see the hidden file with "" )
Note ：　There is a possibility of being a 5GB file .xsession-errors.old made due to the bugs of Linux.     
How to check % ls -la .xsession-errors.old 
How to delete % rm .xsession-errors.old 
see the capacity of the file
% du -k *   　(See the whole capacity of the file）
% du -ks .    (Check the whole amount of the folder）
　　　（It will be shown by the KB unite. Try to make them up to 5000000）
       (If you want to show them by the MG unit,use　du -ms . )
　　　（e.g：　% du -ks　 ~/.Name of the file）
How to delete the unnecessary file
% rm -i Name of the file 
Delete the file without the conformation
% rm Name of the file 
Delete the whole directory without the conformation
% rm -r Name of the directory
ファイル容量を見る
% du -k *   　(全ファイルの容量を見る）
% du -ks .    (フォルダ全体の総量を調べる）
　　　（キロバイト単位で表示される.　5000000　以内に収まるようにする）
       (メガバイト単位で表示するときは　du -ms . )
　　　（例：　% du -ks　 ~/.ファイル名　ファイル名など）
不要なファイルを削除する
% rm -i ファイル名
確認なしでファイルを削除する
% rm ファイル名
確認なしでディレクトリまるごと削除する
% rm -r ディレクトリ名

When cannot print though other people can?

The maximum number of printable sheets per person is 300. You may have already reached your limit.

  1. You can log in to your personal settings page to confirm the printed numbers.

  2. If you exceed the maximum number of sheets, please submit the Application for Extension of Printable Allocation, with the seal and signature of a faculty member of your school, to the Student Service Counter on the first floor of the Information and Media Center Office. The application form is available in a rack on the counter. The application will allow you to print a further 100 sheets.

When cannot print a PDF file?

  1. A printer LCD message such as “Set Tray 1 (priority) 11 ☓ 17 plain paper” or “Set Tray 1 (priority) B5 plain paper” appears.

  2. If you have already sent many print job instructions, first cancel these print job instructions. Log in to your personal settings page , select the page indicating the numbers of sheets to be printed, and select the tab for your print job. Cancel the print job instructions.

  3. Open the printer settings page and select the printer properties. Change the output size to A4 to send your printing instruction again.

Windows environment

When the blue screen appears after logging in

1. After I log in the Windows environment, the following message appears in a blue screen.

PAGE_FAULT_IN_NONPAGED_AREA.
Technical information
0X00000...(0X.......,0X00.......,0X8058C568,0X00......)
（....は数字）

2. Press and hold the power button to force a shutdown and restart the PC.

After I log in, the message [個人設定を読み込んでいます] (loading personal settings) appears for a very long time.

  1. Leaving many files on the desktop may prolong the time required after login and before the PC becomes available for work. Please save your files to the home directory (Drive Z).
  2. Delete unnecessary files.

Note:Do not save your file to the desktop. Please save your files to the home directory (Drive Z) and regularly save backup copies on your own removable media.

When no Drive Z (“z:”) or file appears after logging in.

Sometimes this problem may happen, when the PC does not properly connect to the network. Please restart the PC.

When cannot log in with the message [プロファイルを読み込めない] (profile not loaded) appears.

  1. Sometimes this problem may happen, when many users are trying to log in at the same time in a classroom. Press and hold the power button to force a shutdown and restart the PC.

When there is no Internet connection

  • If only you cannot connect to the Internet via Internet Explorer, use a different web browser, such as Firefox. If you still have problems, review the settings for the proxy server.

    Click Tools > Options > Details > Networks > Connection settings, select the check box, Auto-detect proxy settings for this network, and click OK.

  • Review the settings for the proxy server if you need to use Internet Explorer.

    Click Tools > Internet Options, and select the Connections tab. Click LAN Settings (L) in the Settings for Local Area Network (LAN). Clear the Use the Proxy Server check box and click OK.

  • If the problem is due to an unavailable add-on for Internet Explorer, do not open the IE browser via the shortcut on the desktop or the Start menu.

    • Click Start > All programs > Internet Explorer and review the settings for the above proxy server.

  • If not only you, but also others cannot connect to the Internet, the problem may be related to the room or building. Please contact the Student Service Counter on the first floor of the Information and Media Center Office.

Linux environment

When Thunderbird does not open.

1. If Thunderbird produces the message “running others” and does not open, a lock file may have been created.

2. Start Linux and open the PC screen. By using the command “00000.default,” save the file with a different name. The “00000” part of the file name varies by users, so please confirm it by using the “ls” command.

% cd ~/.thunderbird
% ls
% mv ○○○○○.default  ○○○○○.DEFAULT

3. Restart Thunderbird

When Firefox does not open.

1. If Firefox does not open, open the PC screen. By using the command “00000.default,”save the file with a different name, or delete the file. The “00000” part of the file name varies by user, so please confirm it by using the “ls” command. The bookmark will disappear.

% cd ~/.mozilla/firefox
% ls
% mv ○○○○○.default  ○○○○○.DEFAULT
または削除
% rm -r ○○○○○.default

2. Restart PC

When cannot enter in Japanese? When connecting to an educational Linux server via Remote Deskop Connection, the following error message may appear, and you may not be able to type Japanese. In this case,Please follow below 1.Execute the command below and delete unnecessary files. 2.Log out and then log in again

  • Also try Ctrl+space key not only 半角/全角　key to enter in Japanese.
% cd ~/.mozilla/firefox
% pwd     (firefoxのフォルダにいるか確認する）
% rm -r *  (全ファイル削除）
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