I have setup my CUPS printer and shared it. I can successfully print from my iPhone using this. However, when I enable my firewall, the iPhone can no longer see the print queue. I opened the following ports for UDP and TCP, and allow IN. 631, 3689, 49152 and 5353. after every change, I disable then re-enable the firewall, but still no success. Has anyone successfully setup their ufw firewall to allow airprint? What else needs to be done?
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