CSIM Technical Notes

After installing a new software in Ubuntu, you may want to create an entry in Gnome menu.

• Create a xx.desktop file in /usr/local/applications (the best solution is to copy an existing file; other .desktop files are available in /usr/share/applications).
• Edit this .desktop file to suit your need.
  Note that Matlab will need to have Terminal=true
• Any modification to a .desktop file are available immediately, there is no need to reload Gnome.
• The Categories field is used by Gnome to determine the exact sub-menu entry where your application will be listed.
  One application can be listed in several sub-menues. The file /etc/xdg/menus/applications.menu can be used to find clues how to select the categories.

Sample of matlab.desktop file:

[Desktop Entry]
Version=1.0
Encoding=UTF-8
Name=Matlab
Comment=The language of technical computing
Exec=/usr/local/MATHWORKS_R2009A/bin/matlab
Icon=/usr/local/MATHWORKS_R2009A/ml.png
Type=Application
Terminal=true
Categories=Education;Science;Math;Development;Physics;Utility;Development;Science;

Air-conditionning may need resetting in rooms #203, #204, classroom #209 and the two laboratories #210 and #211. This will happen after some power failure.

In the air-conditioning control room (at the back of room #204 and in room #216), next to each air-conditionning unit, there is a control box.

This control box has a switch that may need to be reseted.

1. Turn the air-conditionning on, using the switch located in the classroom or laboratory or student room.
2. Reset the switch on the control box.

   Be carefull! Only use an isolated tool!
   A plastic pen is a good solution.

3. Locate the control box corresponding to the air-conditionning unit you want to reset.
4. Press the reset switch.
   

   For room #204, the blue button.

   For rooms #203, #209, #210 and #211, the red button.

5. If the air-conditionning is still not working, you have to call the maintenance.

When a user forget his password, there is no way we can tell him what the password is. The only way is to assign the password a new value.

This note describes how to change the user's password, by resetting the existing one.

1. Acces to the URL on the web access to LDAP administration https://www.cs.ait.ac.th/~on/phpldapadmin/.
2. Enter your username after the word uid= and use your own password.
   
3. In the left frame, click on the + to expand dc=cs,dc=ait,dc=ac,dc=th.
   
4. In the left frame, click on the + to expand ou=csim.
5. In the left frame, click on the + to expand ou=People.
6. In the left frame, find the username of the user and click on the username.
7. On the right frame, you get the LDAP reccord for the user, scroll toward the bottom.
8. The attribute Password has two fields, in the left field type Abcd-1; the right field should say md5.
   
9. In the attribute sambaNTPassword, type the same value Abcd-1.
10. At the bottom of the right frame click on the "Save changes" button.
11. Click on the Update Object button.
    
12. Now you need the user to chose a new password and propagete the password to other authentication mechanism beside LDAP.

    Never, ever, leave the password Abcd-1.

13. Access to the account management page https://wwws.cs.ait.ac.th/cgi-bin/connect.
14. Connect to the user's account, using the password Abcd-1.
    
15. Let the user choose a new password or use the suggested password. If you use the suggested password, remember to copy it on paper.
    
16. Click on "Validate".