Node.js中DNS模块学习总结

// [ [ 'v=spf1 include:spf.mail.qq.com -all' ] ]});

dns.resolveSrv('www.baidu.com', (err, addresses) => {
console.log(addresses);
// 服务记录
// []});

dns.resolveNs('www.github.com', (err, addresses) => {
console.log(addresses);
// 域名服务器记录
// [ 'ns-421.awsdns-52.com',
// 'ns-520.awsdns-01.net',
// 'ns1.p16.dynect.net',
// 'ns2.p16.dynect.net',
// 'ns3.p16.dynect.net',
// 'ns4.p16.dynect.net',
// 'ns-1283.awsdns-32.org',
// 'ns-1707.awsdns-21.co.uk' ]});

dns.resolveCname('www.163.com', (err, addresses) => {
console.log(addresses);
// 获取别名记录
// [ 'www.163.com.lxdns.com' ]});

dns.lookup('google.com', 4, (err, address, family) => {
// 查询IP地址
// address，查询到的地址
// family，IPv4或IPv6
console.log(address);// 172.217.27.142
console.log(family);// 4
});

dns.lookup('google.com', 6, (err, address, family) => {
console.log(address);// 2404:6800:4008:803::200e
console.log(family);// 6
});

dns.reverse('203.188.200.67', (err, domain) => {
// 反向解析IP地址
console.log(domain);
// [ 'media-router-fp1.prod.media.vip.tp2.yahoo.com' ]});