Louis Lam
3 years ago
committed by
GitHub
GitHub
9 changed files with 302 additions and 3 deletions
@ -0,0 +1,10 @@ |
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-- You should not modify if this have pushed to Github, unless it does serious wrong with the db. |
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BEGIN TRANSACTION; |
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ALTER TABLE monitor |
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ADD dns_resolve_type VARCHAR(5); |
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ALTER TABLE monitor |
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ADD dns_resolve_server VARCHAR(255); |
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COMMIT; |
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@ -0,0 +1,144 @@ |
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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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} if (question.type === Packet.TYPE.AAAA) { |
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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: "fe80::::1234:5678:abcd:ef00", |
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}); |
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} else if (question.type === Packet.TYPE.CNAME) { |
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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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domain: "cname1.existing.com", |
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}); |
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} else if (question.type === Packet.TYPE.MX) { |
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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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exchange: "mx1.existing.com", |
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priority: 5 |
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}); |
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} else if (question.type === Packet.TYPE.NS) { |
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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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ns: "ns1.existing.com", |
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}); |
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} else if (question.type === Packet.TYPE.SOA) { |
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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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primary: "existing.com", |
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admin: "admin@existing.com", |
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serial: 2021082701, |
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refresh: 300, |
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retry: 3, |
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expiration: 10, |
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minimum: 10, |
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}); |
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} else if (question.type === Packet.TYPE.SRV) { |
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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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priority: 5, |
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weight: 5, |
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port: 8080, |
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target: "srv1.existing.com", |
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}); |
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} else if (question.type === Packet.TYPE.TXT) { |
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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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data: "#v=spf1 include:_spf.existing.com ~all", |
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}); |
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} else if (question.type === Packet.TYPE.CAA) { |
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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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flags: 0, |
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tag: "issue", |
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value: "ca.existing.com", |
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}); |
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} |
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} |
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if (question.name === "4.3.2.1.in-addr.arpa") { |
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if (question.type === Packet.TYPE.PTR) { |
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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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domain: "ptr1.existing.com", |
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}); |
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} |
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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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