Am 31.10.2014 um 10:34 schrieb Jarmo Hurri: > So I must be doing something wrong. My questions are: > > 1. Have I diagnosed the situation correctly? Is port 631 really open to > the outside world? Probably. > 2. If port 631 is open, why can I not close it using firewalld? You're very likely doing something wrong. But since I don't use firewalld and I am not familiar with it, I can't tell you what that might be. > 3. What is the best way to deny connections to the port from any other > computer than that of my own? Is it the approach I have taken now? Others will probably tell you, how to use firewalld to deny access to some open port. OTOH: First, you tell cups to listen to the network and then you try to use firewalld to make sure it won't succeed in doing so. In this case, I'd consider it a much better idea to tell cups to listen only to the loopback interface and ignore the external network altogether - by setting "Listen" appropriately in cupsd.conf. For example: # Only listen for connections from the local machine. Listen localhost:631 Listen /var/run/cups/cups.sock -- Regards mks -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org