@ask_bill_brooks  Yes!. I am trying to install Cloudera manager on my CentOS 7 machine. But I am facing some problems while installing. As I installed cloudera manager on my machine and got stuck at cluster installation step.  After many attempts on cluster installation step, some how I managed downloading CDH repository on localhost but now while distributing the packages I am getting "Host is in bad health" error.  I am not sure if I am going right way or not, but I think there is something wrong with my localhost iptables or may be firewall issue.  "My ultimate aim is to install Cloudera manager the latest version on my CentOS 7 machine as a single node cluster, so I can use Hadoop, hive and Impala and other software's for learning purpose."    ... View more

Can you more elaborate on "Hostname tied to the actual IP address?" and "Use "ifconfig -a" to see a listing of your network interfaces and choose one that has an actual IP address."   How do I know which hostname and ip address to use. Because while installing single node cluster of cloudera how would you know which hosts to specify?   Thank you! ... View more