feat: project init

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/kenaito-dns.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/kenaito-dns.iml" filepath="$PROJECT_DIR$/.idea/kenaito-dns.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

README.md

@@ -1,3 +1,25 @@
 # kenaito-dns
 
-DNS服务器，可通过WEB管理界面随意设置灵活的解析规则。为了纯血自研devops平台而生。
+DNS服务器，可通过Web管理界面随意设置灵活的解析规则。为了纯血自研devops平台而生。
+
+# Go代理地址配置
+
+[去看看](https://blog.odboy.cn/go%E5%85%A8%E5%B1%80%E9%85%8D%E7%BD%AE%E5%9B%BD%E5%86%85%E6%BA%90-by-odboy/)
+
+# nslookup 命令不存在解决
+
+```shell
+yum install bind-utils -y
+```
+
+# nslookup指定dns服务器查询
+
+```shell
+# 这里dns服务器为 192.168.1.103
+nslookup example.com 192.168.1.103
+```
+
+# 本程序所用依赖，感谢开源者的无私奉献
+
+- [数据库操作](http://xorm.topgoer.com/)
+- [DNS解析](https://github.com/miekg/dns)

go.mod

@@ -0,0 +1,13 @@
+module awesomeProject
+
+go 1.19
+
+require github.com/miekg/dns v1.1.62
+
+require (
+	golang.org/x/mod v0.18.0 // indirect
+	golang.org/x/net v0.27.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/tools v0.22.0 // indirect
+)

go.sum

@@ -0,0 +1,12 @@
+github.com/miekg/dns v1.1.62 h1:cN8OuEF1/x5Rq6Np+h1epln8OiyPWV+lROx9LxcGgIQ=
+github.com/miekg/dns v1.1.62/go.mod h1:mvDlcItzm+br7MToIKqkglaGhlFMHJ9DTNNWONWXbNQ=
+golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
+golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
+golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
+golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
+golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/tools v0.22.0 h1:gqSGLZqv+AI9lIQzniJ0nZDRG5GBPsSi+DRNHWNz6yA=
+golang.org/x/tools v0.22.0/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=

handler.go

@@ -0,0 +1,80 @@
+package main
+
+import (
+	"fmt"
+	"github.com/miekg/dns"
+	"net"
+)
+
+// 构建 A 记录的函数 IPV4
+func handleARecord(q dns.Question, msg *dns.Msg) {
+	name := q.Name
+	targetIp := "192.235.111.111"
+	fmt.Printf("请求解析的域名：%s,解析的目标IP地址:%s\n", name, targetIp)
+	ip := net.ParseIP(targetIp)
+	rr := &dns.A{
+		Hdr: dns.RR_Header{
+			Name:   name,
+			Rrtype: dns.TypeA,
+			Class:  dns.ClassINET,
+			Ttl:    60,
+		},
+		A: ip,
+	}
+	msg.Answer = append(msg.Answer, rr)
+}
+
+//// 构建 A 记录的函数 IPV6
+//func handleAAAARecord(q dns.Question, msg *dns.Msg) {
+//	ip := net.ParseIP("rsdw::8888")
+//	rr := &dns.AAAA{
+//		Hdr: dns.RR_Header{
+//			Name:   q.Name,
+//			Rrtype: dns.TypeAAAA,
+//			Class:  dns.ClassINET,
+//			Ttl:    60,
+//		},
+//		AAAA: ip,
+//	}
+//	msg.Answer = append(msg.Answer, rr)
+//}
+
+//func handleCNAMERecord(q dns.Question, msg *dns.Msg) {
+//	rr := &dns.CNAME{
+//		Hdr: dns.RR_Header{
+//			Name:   q.Name,
+//			Rrtype: dns.TypeCNAME,
+//			Class:  dns.ClassINET,
+//			Ttl:    60,
+//		},
+//		Target: "example.com.",
+//	}
+//	msg.Answer = append(msg.Answer, rr)
+//}
+//
+//func handleMXRecord(q dns.Question, msg *dns.Msg) {
+//	rr := &dns.MX{
+//		Hdr: dns.RR_Header{
+//			Name:   q.Name,
+//			Rrtype: dns.TypeMX,
+//			Class:  dns.ClassINET,
+//			Ttl:    60,
+//		},
+//		Preference: 10,
+//		Mx:         "mail.example.com.",
+//	}
+//	msg.Answer = append(msg.Answer, rr)
+//}
+//
+//func handleTXTRecord(q dns.Question, msg *dns.Msg) {
+//	rr := &dns.TXT{
+//		Hdr: dns.RR_Header{
+//			Name:   q.Name,
+//			Rrtype: dns.TypeTXT,
+//			Class:  dns.ClassINET,
+//			Ttl:    60,
+//		},
+//		Txt: []string{"v=spf1 include:_spf.example.com ~all"},
+//	}
+//	msg.Answer = append(msg.Answer, rr)
+//}

main.go

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+package main
+
+import (
+	"github.com/miekg/dns"
+	"log"
+)
+
+func main() {
+	// 注册 DNS 请求处理函数
+	dns.HandleFunc(".", handleDNSRequest)
+	// 设置服务器地址和协议
+	server := &dns.Server{Addr: ":53", Net: "udp"}
+	// 开始监听
+	log.Printf("Starting DNS server on %s\n", server.Addr)
+	if err := server.ListenAndServe(); err != nil {
+		log.Fatalf("Failed to start server: %s\n", err.Error())
+	}
+}
+
+func handleDNSRequest(w dns.ResponseWriter, r *dns.Msg) {
+	msg := new(dns.Msg)
+	msg.SetReply(r)
+	// 将 DNS 响应标记为权威应答
+	msg.Authoritative = true
+	// 将 DNS 响应标记为递归可用
+	// msg.RecursionAvailable = true
+	// 遍历请求中的问题部分，生成相应的回答
+	for _, question := range r.Question {
+		switch question.Qtype {
+		case dns.TypeA:
+			handleARecord(question, msg)
+			//case dns.TypeAAAA:
+			//	handleAAAARecord(question, msg)
+			//case dns.TypeCNAME:
+			//	handleCNAMERecord(question, msg)
+			//case dns.TypeMX:
+			//	handleMXRecord(question, msg)
+			//case dns.TypeTXT:
+			//	handleTXTRecord(question, msg)
+		}
+	}
+	// 发送响应
+	w.WriteMsg(msg)
+}