This is very strange - has been happening the last few days. I just upgraded this system from 5.3 to 5.7 on Monday and the problem started some time after that (but not immediately because I know I used yum Monday evening after the upgrade)
I get the following error from yum, but it goes away if I --disablerepo=epel
The funny thing is that the listed xml file I can easily wget from this system.
Also having the issue with other 5.7 systems that were upgraded from 5.3 several weeks ago and had been working fine since.
I did some googling and found some things to try like "yum clean all" and I even deleted the rpm database based on advice from one site, and then rebuilt it from scratch. But nothing.
[root@solexa-db varlog]# yum -y install hddtemp Loaded plugins: downloadonly, rhnplugin, security http://fedora.mirror.nexicom.net/epel/5/x86_64/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')> Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: epel. Please verify its path and try again