[golang]Go net.lookup包

package main

import (
    "fmt"
    "net"
)

func main() {
    //查找DNS A记录
    iprecords, _:=net.LookupIP("landv.cn")
    for _,ip:=range iprecords{
        fmt.Println(ip)
    }
    //查找DNS CNAME记录
    canme, _:=net.LookupCNAME("www.baidu.com")
    fmt.Println(canme)
    //查找DNS PTR记录
    ptr,e :=net.LookupAddr("8.8.8.8")
    if e != nil {
        fmt.Println(e)
    }
    for _, ptrval:=range ptr{
        fmt.Println(ptrval)
    }
    //查找DNS NS记录
    nameserver,_:=net.LookupNS("baidu.com")
    for _,ns :=range nameserver{
        fmt.Println("ns记录",ns)
    }
    //查找DNS MX记录
    mxrecods,_ :=net.LookupMX("google.com")
    for _,mx :=range mxrecods{
        fmt.Println("mx:",mx)
    }
    //查找DNS TXT记录
    txtrecords, _ := net.LookupTXT("baidu.com")

    for _, txt := range txtrecords {
        fmt.Println("txt:",txt)
    }
}

运行结果

185.199.111.153
185.199.108.153
185.199.109.153
185.199.110.153
www.a.shifen.com.
dns.google.
ns记录 &{dns.baidu.com.}
ns记录 &{ns7.baidu.com.}
ns记录 &{ns2.baidu.com.}
ns记录 &{ns3.baidu.com.}
ns记录 &{ns4.baidu.com.}
mx: &{aspmx.l.google.com. 10}
mx: &{alt1.aspmx.l.google.com. 20}
mx: &{alt2.aspmx.l.google.com. 30}
mx: &{alt3.aspmx.l.google.com. 40}
mx: &{alt4.aspmx.l.google.com. 50}
txt: v=spf1 include:spf1.baidu.com include:spf2.baidu.com include:spf3.baidu.com a mx ptr -all
txt: google-site-verification=GHb98-6msqyx_qqjGl5eRatD3QTHyVB6-xQ3gJB5UwM

 

来源：https://www.cnblogs.com/landv/p/11583569.html