# File lib/stella/utils.rb, line 156
    def cname(host)
      require 'resolv'
      host = host.host if host.kind_of?(URI)
      begin
        resolv = Resolv::DNS.new # { :nameserver => [] }
        resolv.getresources(host, Resolv::DNS::Resource::IN::CNAME).collect { |cname| cname.name.to_s }.first
      rescue => ex
        Stella.ld "Error getting CNAME for #{host}: #{ex.message} (#{ex.class})"
        Stella.ld ex.backtrace
        nil
      end
    end