From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050416 Fedora/1.0.3-1.3.1 Firefox/1.0.3 Description of problem: When updating my system on friday, april 22, with "yum update", the cups config file /etc/cups/cupsd.conf will be corrupt: there is a config line inserted with the contents: Listen 127.0.0.1:631 This forbids contacts from other hosts. Version-Release number of selected component (if applicable): yum-2.2.0-0.fc3 How reproducible: Always Steps to Reproduce: 1.see description 2. 3. Actual Results: contacts from outside are rejected. Expected Results: printing possible from hosts other than the cups server. Additional info: Removing the Listen line solves my problem.
This has nothing to do with yum. Refiling against cups
If you are not using system-config-printer to configure cups, you *must* remove system-config-printer.