On Wed, 2011-04-20 at 20:07 -0500, John Morris wrote: > Cups is present and browsing is enabled but no printers show. Lots of > printers are expected to show. Nothing interesting in the logs. This is because Fedora still has no good story for how applications should request firewall changes. It's coming though in the form of firewalld, hopefully. Note that this is one of those things that was addressed (mostly) in system-config-printer but which has not yet been implemented in the new GNOME 3 printing settings module. Until firewalld is out of preview, GNOME 3 could use the approach that system-config-printer does: if there are no printers available, query the firewall settings (using system-config-firewall's D-Bus interface) to see if the IPP UDP port is blocked, and if so ask the user if they want to change that: http://cyberelk.net/tim/2010/04/15/firewall-adjustments/ Tim. */
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