Printing under macOS

There are two ways to address the printers at Theresienstrasse from a Mac:

1. Printing over an SSH tunnel
   
   Advantage: Using an SSH tunnel, you can print from anywhere.
   Disadvantage: You need to set up an SSH tunnel.
2. Printing via the CUPS server
   
   Advantage: No SSH tunnel required.
   Disadvantage: A LAN connection and an IP address in the local Theoretical Physics network is required.

Printing over an SSH tunnel

Prerequisites:

• Administrator rights
• Network connection to the MWN (Munich scientific network), e.g. via WLAN in "eduroam"

Instructions:

1. Launch the "Terminal" application (located in your /Applications/Utilities folder).
2. To open an SSH tunnel, enter the command:

   $ ssh -L 6631:th-sv-cups.theorie.physik.uni-muenchen.de:631 -N -T <user>@<host>.theorie.physik.uni-muenchen.de
   

   
   Substitute <user> with your user name, and replace <host> with one of the Linux workstations. Enter your password when prompted. The Terminal application window must stay open in the background.
3. Open the System Preferences (Apple menu -> "System Preferences...").
4. Select " Print & Scan".
   
   
5. If the lock in the left bottom corner is locked, click it, and authenticate yourself as the administrator.
   
   
6. Set the default paper size to A4.
7. Click on the "+" sign.
   
8. Make the following settings in the "IP" tab:
   
   • Protocol: select "Internet Printing Protocol (IPP)"
   • Address: localhost:6631
   • Queue: printers/<printername>
     You can find a list of all printers located at Theresienstrasse here.
   • Name: enter the display name of the printer (e.g. "malkasten via CUPS")
   • Location: please find a list of the available printers and their locations here.
   • Print Using: "Generic PostScript Printer" (no change necessary)
   • Click "Add". If a dialog box pops up saying "Unable to verify the printer on your network." click "Continue".
   • Check "Duplex Printing Unit" in the subsequent dialog.
   • Click "OK".
   

Printing via the CUPS server

Prerequisites:

• Administrator rights
• IP address in the local Theoretical Physics network

Instructions:

1. Open the System Preferences (Apple menu -> "System Preferences...").
2. Select "Print & Scan".
   
   
3. If the lock in the left bottom corner is locked, click it, and authenticate yourself as the administrator.
   
   
4. Set the default paper size to A4.
5. Click the "+" sign.
   
   
6. Make the following settings in the "IP" tab:
   
   • Protocol: "Internet Printing Protocol (IPP)".
   • Address: th-sv-cups.theorie.physik.uni-muenchen.de
   • Queue: printers/<printername>
     You can find a list of all printers located at Theresienstrasse here.
   • Name: Display name of the printer (e.g. "malkasten via CUPS")
   • Location: find the printer's location here.
   • Print Using: "Generic PostScript Printer" (no change necessary)
   • Click "Add". If a dialog box pops up saying "Unable to verify the printer on your network." click "Continue".
   • Check "Duplex Printing Unit" in the subsequent dialog.
   • Click "OK".