Usage of ./dnssearch:
  -consumers int
        Number of concurrent consumers. (default 8)
  -domain string
        Base domain to start enumeration from.
  -wordlist string
        Wordlist file to use for enumeration. (default "names.txt")
  -a bool
        Lookup A records ( default true )
  -txt bool
        Lookup TXT records ( default false )
  -cname bool
        Show CNAME results ( default false )
   

go get github.com/evilsocket/dnssearch
cd dnssearch
go build -o dnssearch main.go

docker build -t dnssearch .
docker run -it --rm dnssearch