code: def _get_dns_info():
      '''
      return dns list
      '''
      dns_list = []
      try:
          with salt.utils.files.fopen('/etc/resolv.conf', 'r+') as dns_info:
              lines = dns_info.readlines()
              for line in lines:
                  if 'nameserver' in line:
                      dns = line.split()[1].strip()
                      if dns not in dns_list:
                          dns_list.append(dns)
      except IOError:
          log.warning('Could not get domain\n')
      return dns_lisf _get_dns_info():
      '''
      return dns list
      '''
      dns_list = []
      try:
          with salt.utils.files.fopen('/etc/resolv.conf', 'r+') as dns_info:
              lines = dns_info.readlines()
              for line in lines:
                  if 'nameserver' in line:
                      dns = line.split()[1].strip()
                      if dns not in dns_list:
                          dns_list.append(dns)
      except IOError:
          log.warning('Could not get domain\n')
      return dns_list
docs: return dns list