27 lines
621 B
JavaScript
27 lines
621 B
JavaScript
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import * as dnsPacket from '@leichtgewicht/dns-packet'
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import dgram from 'dgram'
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const socket = dgram.createSocket('udp4')
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function getRandomInt (min, max) {
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return Math.floor(Math.random() * (max - min + 1)) + min
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}
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const buf = dnsPacket.encode({
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type: 'query',
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id: getRandomInt(1, 65534),
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flags: dnsPacket.RECURSION_DESIRED,
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questions: [{
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type: 'A',
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name: 'google.com'
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}]
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})
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socket.on('message', function (message, rinfo) {
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console.log(rinfo)
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console.log(dnsPacket.decode(message)) // prints out a response from google dns
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socket.close()
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})
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socket.send(buf, 0, buf.length, 53, '8.8.8.8')
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