Jan 26, 2013
HowTo: Fix Yum "Couldn't resolve host" Error in Fedora 18
** if you are getting a "Couldn't resolve host" response to this then simply do the following
look for the list of the nameserver and add the line below to the top of the list
your /etc/resolv.conf should look something like this
# Generated by NetworkManager
# NOTE: the libc resolver may not support more than 3 nameservers.
# The nameservers listed below may not be recognized.