PSI and LNS Windows-NT Services

Mark Könnecke
Labor für Neutronenstreuung
November 1997

There exists a novell service for Intell PC users running Windows95 or Windows NT. This service provides file services and printer services. This service is existing PSI-wide. Within this PSI wide system, LNS maintains an own resource server. Currently the LNS server (named lns00) provides additional diskspace and access to two printers, owned by LNS. These are the AppleWriter 16/1600 at the first floor of WHGA and the Tektronix Phaser colour printer living with Mrs Castellazzi. Files stored on the lns00 server lnsdata and lnslib area are subjected to a regular automatic backup. This means full backup any week, incremental backup any night. This document describes how to use these services.

Logging in to the PSI domain

1. Open MyComputer/ControlPanel/Network
2. Check Client for Microsoft Networking
3. Click Properties
4. Check Log on to Windows NT domain
5. Set Windows NT domain field to: PSI
6. Go back to Network main window
7. Select Identification
8. Set Workgroup to PSI.
9. Close everything and reboot.

• G is a group disk
• M is a group disk
• YourName is your personal area on the PSI-central file server. Please note that the backup of this area is handled by ACO and is not under our control.
• L_Vorlagen contains PSI templates for popular document editors.

Connecting to the LNS file service

1. Start Windows Explorer.
2. Menu item Tools/Map Network drive.
3. The fields must be filled in as follows:
   • The drive letter is at your discretion but must be different from those already assigned.
   • The paths are:

     \\lns00\lnsdata

     For the backuped LNS data disk. You are required to create your own directory there. Files floating in the root directory will be deleted by the system managers without warning and will be refused to be recovered.

     \\lns00\lnslib

     This is an LNS library area where commonly used LNS specific Windows programs and installation scripts will be provided.

     \\lns00\scratch

     A scratch area. Data on this scratch area will not be backuped and may be deleted at any inconvenient moment.

   • If you check Automatic reconnect on logon those disks will automatically be reconnected when you restart your computer.

Connecting LNS printers

1. Open MyComputer/Printers/Addprinter
2. Choose Install Network printer.
3. Enter one of:
   • \\lns00\ls16600nt for the Apple LaserWriter on WHGA, 1 floor.
   • \\lns00\Phaser550NT for the Tektronix colour printer living with Mrs Castellazzi.
4. Then the program may ask for a driver: this is Apple, Apple Laserwriter Pro 600 for the Laserwriter and Tektronix, Phaser 550 for the colour printer. When such printers have never been installed on your system you might be asked to provide a Windows95 CD in order to copy the drivers. Such a disk lives with Anders Isaacson or Mark Könnecke.
5. Click all Nexts and Finishes to finish the printer definition process.

Changing the PSI-Domain Password

1. Walk to Mark Könnecke's office (WHGA/247)
2. Login onto the Windows NT workstation close to the door with your PSI domain name and password.
3. Press Ctr-Alt-Del. Then there will be a little menu. From this select change password.
4. A menu for changing passwords will show up. Required input is, as usual, the old password and the new password two times.
5. Press OK when done with input. The computer will tell you if the attempt to change password was successful.
6. You may log out of Mark's PC then.

Changing File Permissions

1. Logon to the Windows-NT machine again under your username and password.
2. Open Windows Explorer.
3. Find the directory or files whose permissions shall be changed in explorer.
4. Klicking the right mouse button on such a file or directory brings up a little menu.
5. Select properties in this menu.
6. A new dialog pops up. The tab labeled Security is the one to klick now.
7. The top box contains a button labelled permissions. Klick that one, leave everything else in the security tab alone.
8. Yet another dialog shows up, titled directory permissions. This dialog needs some explanation. Windows-NT has a set of access rights which can be granted to user groups or single users. Accordingly, the top listbox in the permissions dialog shows those groups and users. The listbox below that one shows the current permissions of the group or user highlighted in the group or user listbox.
9. Thus, to change a permission highlight the user or group in the upper listbox and select an apropriate access right from the lower listbox.
10. If the change should apply to all files and directories below a given directory make sure that the Replace Permissions on Subdirectories checkbox is checked. This is a common gotcha!
11. Klicking on OK, will commit your changes.
12. If the upper listbox does not contain the user or group to be manipulated, klick the add button at the bottom of the permissions window.
13. Another dialog clutters your desktop now.
14. First thing, make sure to select PSI in the listbox labelled Select names from.
15. Then select a group or user from the list in the middle listbox. By default, initially only groups are shown. In order to select a single user, klick the button Show Users and wait a little time.
16. Then proceed to select an access right for the selected group or user from the listbox at the bottom of the dialog.
17. Then klick the Add button. Your selection should show up in the listbox labelled Add Names.
18. Klick OK repeatedly in order to activate your changes.
19. The job is done. Clear the desktop from the plethora of windows required by this job.
20. Do not complain if you get it wrong!
21. If you get it wrong, please try at least five times to fix it before you bother a system administrator.