dns.resolveNaptr(hostname, callback)


使用DNS协议来处理基于正则表达式匹配的记录(NAPTR记录)的主机名。adresses参数是传递给callback函数的主机名对象数组,对象包含属性:

  • flags
  • service
  • regexp
  • replacement
  • order
  • preference

例如:

{
  flags: 's',
  service: 'SIP+D2U',
  regexp: '',
  replacement: '_sip._udp.example.com',
  order: 30,
  preference: 100
}

Uses the DNS protocol to resolve regular expression based records (NAPTR records) for the hostname. The addresses argument passed to the callback function will contain an array of objects with the following properties:

  • flags
  • service
  • regexp
  • replacement
  • order
  • preference
{
  flags: 's',
  service: 'SIP+D2U',
  regexp: '',
  replacement: '_sip._udp.example.com',
  order: 30,
  preference: 100
}