1. install sudo apt-get install cupsys 2. configure a) make a copy and protect it from writing sudo cp /etc/cups/cupsd.conf /etc/cups/cupsd.conf.original sudo chmod a-w /etc/cups/cupsd.conf.original b) change as you want sudo nano /etc/cups/cupsd.conf ServerAdmin lei@icc-computer.com Listen 192.168.1.100:631 # Listen on the LAN interface, Port 631 (IPP) 3. sudo /etc/init.d/cupsys restart