59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
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/*
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* Simple DNS Server
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* For testing DNS monitoring type, dev only
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*/
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const dns2 = require("dns2");
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const { Packet } = dns2;
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const server = dns2.createServer({
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udp: true
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});
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server.on("request", (request, send, rinfo) => {
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for (let question of request.questions) {
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console.log(question.name, type(question.type), question.class);
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const response = Packet.createResponseFromRequest(request);
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if (question.name === "existing.com") {
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if (question.type === Packet.TYPE.A) {
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response.answers.push({
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name: question.name,
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type: question.type,
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class: question.class,
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ttl: 300,
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address: "1.2.3.4"
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});
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}
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// TODO: all other types
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}
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send(response);
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}
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});
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server.on("listening", () => {
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console.log("Listening");
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console.log(server.addresses());
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});
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server.on("close", () => {
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console.log("server closed");
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});
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server.listen({
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udp: 5300
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});
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function type(code) {
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for (let name in Packet.TYPE) {
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if (Packet.TYPE[name] === code) {
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return name;
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}
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}
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}
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