# each machine gets a Machine block
<Machine Redhat7_3_i686>

   # a reminder of what's on this machine
   Description "Redhat 7.3 Server w/ custom Perls for i686"

   # the user and password the farm system will use to login, needs sudo
   User krang
   Password krang
   # the Perl binaries and the builds they generate
   Perls /usr/bin/perl            Redhat7_3-perl5.6.1-i686-linux \
         /usr/local/bin/perl5.6.2 Redhat7_3-perl5.6.2-i686-linux \
         /usr/local/bin/perl5.8.3 Redhat7_3-perl5.8.3-i686-linux \
         /usr/local/bin/perl5.8.4 Redhat7_3-perl5.8.4-i686-linux
</Machine>

Example 4: A single machine's configuration block.