Description of problem: In an environment without DNS support, both server and SUT may have "localhost.localdomain" for host names. In this case, the network and kdump tests fail because they try and communicate with the server using the hostname "localhost.localdomain". Version-Release number of selected component (if applicable): redhat-certification 2.0 20151007
verified in: redhat-certification-2.0-20151013.el7 redhat-certification-hardware-1.7.1-20150901.el7 both network and cpuscaling tests complete with no related problems, on a system with blank resolv.conf and hostname localhost since boot.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2015-2479.html