# File lib/ssh/manager/cli.rb, line 66
      def ping(id)
        via = DATABASE.get_connection_data[id.to_i-1][-1] =~ /@/
        @ip = DATABASE.get_connection_data[id.to_i-1][0]
        if via.nil?
          exec("ping #{@ip}")
        else
          via = DATABASE.get_connection_data[id.to_i-1][-1]
          exec("ssh #{via} ping #{@ip}")
        end
      end