HP printer unavailable with firewalled.
by globetrotterdk from LinuxQuestions.org on (#6KH7Y)
I have installed firewalld on my Debian 12 install and opened up ports 631 and 9100 on both tcp and udp, like I do when running Fedora, for my HP printer. The printer is a driverless HP Color LaserJet Pro M453. I have not changed any settings on the printer, for a very long time. Yet the system can't find the printer either for setup or printing. I have confirmed that the problem is firewalld, by running:
Code:$ sudo systemctl stop firewalldThen I was able to configure the printer. Now that I have firewalld back on, I can't print to the printer, and I get a "no suitable host found" error.
Is there something that Debian 12 does differently with firewalld, or the ports that printers connect to the system on?
Code:$ sudo systemctl stop firewalldThen I was able to configure the printer. Now that I have firewalld back on, I can't print to the printer, and I get a "no suitable host found" error.
Is there something that Debian 12 does differently with firewalld, or the ports that printers connect to the system on?