brute

Package brute allows concurrently bruteforce subdomains for a domain using a list of DNS servers and querying a desired DNS record.

Install

go get -u github.com/jimen0/brute

Usage

package main
import (
    "context"
    "fmt"
    "log"
    "os"
    "github.com/jimen0/brute"
)
func main() {
    f, err := os.Open("/home/jimeno/top100.txt")
    if err != nil {
        log.Fatalf("could not open file: %v", err)
    }
    defer f.Close()
    out := make(chan string)
    done := make(chan struct{})
    go func() {
        for v := range out {
            fmt.Printf("%s\n", v)
        }
        done <- struct{}{}
    }()
    br := brute.Bruter{
        Domain:  "yahoo.com",
        Retries: 1,
        Record:  "A",
        Servers: []string{"1.1.1.1:53", "8.8.8.8:53", "1.0.0.1:53", "8.8.4.4:53"},
        Workers: 10, // increment this value to use more goroutines
    }
    err = br.Brute(context.Background(), f, out)
    if err != nil {
        log.Printf("failed to brute: %v", err)
    }
    <-done
}

Test

Just run go test -race -v github.com/jimen0/brute/...

Improvements

Send a PR or open an issue. Just make sure that your PR passes gofmt, golint and govet.