Save this snippet in a file and run with go run . or go run . google.com
package main
import (
"fmt"
"net"
"os"
)
func main() {
addr := "stuff.21zoo.com"
if len(os.Args) > 1 {
addr = os.Args[1]
}
ips, err := net.LookupIP(addr)
if err != nil {
fmt.Printf("net.LookupIP( %s ) err: %s", addr, err)
return
}
for _, ip := range ips {
fmt.Printf("%s has address %s\n", addr, ip.String())
}
}
Sample output:
$ go run . stuff.21zoo.com
stuff.21zoo.com has address 104.31.85.183
stuff.21zoo.com has address 104.31.84.183
stuff.21zoo.com has address 2606:4700:30::681f:55b7
stuff.21zoo.com has address 2606:4700:30::681f:54b7