Print from Linux

System wide solution (have root access)

You need root privileges in order to configure this and the change will apply for all users of the computer

sudo cp /etc/profile /etc/profile.orig
sudo echo 'CUPS_SERVER=cups.imm.dtu.dk' >> /etc/profile
sudo echo 'export CUPS_SERVER' >> /etc/profile

Reboot the computer. After the computer is rebooted you should now how a list of printers to use. For more information about the printers have look here.

If you get a dialogue box about authorization failed containing fields to enter username and password, DO NOT enter your password as it is not required and it sent unencrypted over the network. Just click "OK" and everything will be fine.

User only solution without root access (commandline)

Here root access is not needed. The change will only take effect for the user logged in.

cp ~/.profile ~/.profile.orig
echo 'CUPS_SERVER=cups.imm.dtu.dk' >> ~/.profile
echo 'export CUPS_SERVER' >> ~/.profile

Log out of the system and log in again. The system can now see all available printers.

If you get a dialogue box about authorization failed containing fields to enter username and password, DO NOT enter your password as it is not required and it sent unencrypted over the network. Just click "OK" and everything will be fine.

User only solution without root access (GUI)

If you want to be able to easy switch between DTU Compute's print server and e.g. a home printer, then follow this guide.

• Open a terminal and type system-config-printer and hit Enter.
• On Ubuntu go to the global menu for the just opened program and click Server and then select Connect....
• As "Cups server" type: cups.imm.dtu.dk and click Connect.

You should new see a long list of printers. Right click on the one that you want to use, and select Set as default.

Adding a home printer

Is done by opening a terminal and type system-config-printer and hit Enter. From here click Add and follow the instructions.

Ubuntu 12.10

Ubuntu 12.10 ships with cups 1.6 with have a regression bug that doesn't let it print to older cups print servers. For DTU Compute users this means that if you are using Ubuntu 12.10 you have to print using the commandline.

First test that cups-lpd is installed by clicking on this link. If you see a page about CUPS, then it is good.

The basics

To see the available printers

lpstat -p -d

set a default printer

lpoptions -d printer

print a txt or pdf file

lpr -P printer_name filename

list jobs on printer_name

lpq -P printer_name

delete a job on printer_name

lprm -P printer_name job_number

There are many other options e.g. how to change paper size. Please see the help examples.