anchor.diff:  # permit the source to query or modify the service on this system.
   <% @restrict.flatten.each do |restrict| -%>
   restrict <%= restrict %>
  -<% end %>
  +<% end -%>
   <% end -%>
   
   <% if @interfaces != [] -%>
  
positive.code: interface ignore wildcard
  <% @interfaces.flatten.each do |interface| -%>
  interface listen <%= interface %>
  <% end %>
  <% end -%>
  
  <% [@servers].flatten.each do |server| -%>
  
negative.code: # Driftfile.
  driftfile <%= @driftfile %>
  
  <% unless @logfile.nil? -%>
  # Logfile
  logfile = <%= @logfile %>
  <% end -%>
  
  <% if @keys_enable -%>
  keys <%= @keys_file %>
  