Go Standard Library Cookbook

How to do it...

1. Open the console and create the folder chapter07/recipe03.
2. Navigate to the directory.
3. Create the lookup.go file with the following content:

        package main         import (          "fmt"          "net"        )        func main() {          // Resolve by IP          addrs, err := net.LookupAddr("127.0.0.1")          if err != nil {            panic(err)          }          for _, addr := range addrs {            fmt.Println(addr)          }          //Resolve by address          ips, err := net.LookupIP("localhost")          if err != nil {            panic(err)          }          for _, ip := range ips {            fmt.Println(ip.String())          }        }

4. Execute the code by running go run lookup.go in the main Terminal.
5. You will see the following output: