Puppet configs

Puppet master
    server name in /etc/puppet/puppet.conf is not needed
    set autosign=true in /etc/puppet/puppet.conf

Obtain the puppet master hostname by executing  "hostname -f"

Puppet agent
    Set the proper puppet hostname in /etc/puppet/puppet.conf which is obtained in the previous command, if that is resolvable. Otherwise need to add that hostname into /etc/hosts file
    agent's hostname can be any value. No need to have master's hostnames init. puppet agents hostname need to be resolvable. for eg, to 127.0.0.1