Description of problem:
The procedure here has them set only one nameserver, the broker one. In practice, if they do this and have made a mistake with that nameserver, it causes a lot of problems (like packages not installing). It's better to leave the backup nameservers in there and deal with nameserver problems later.

  
Actual results:
1. Open the  /etc/resolv.conf file on the broker host, and remove any existing entries.
2. Add the following entry:
nameserver  127.0.0.1

Expected results:
1. Edit the  /etc/resolv.conf file on the broker host.
2. Add the following entry as the first nameserver:
nameserver  127.0.0.1