发现是一个多线程bruteforcer DNS子域。

Introduction. DNS-Discovery is a multithreaded subdomain bruteforcer meant to be used by pentesters during the initial stages of testing. It uses a wordlist that concatenates with a given domain to search for subdomains. DNS-Discovery resolve and display IPv4 and IPv6. It"s similar to others tools, like dnsmap, but multithreaded. It was tested in GNU/Linux 2.6.38 and FreeBSD 8.1-STABLE. Download http://dns-discovery.googlecode.com Compiling $ make Usage ``` usage: ./dns-discovery [options] options: -w (default : wordlist.wl) -t (default : 1) -r -c ex: $ ./dns-discovery google.com -w wordlist -t 5 -r reportfile ___ _ ______ ___ _ / _ / |/ / // _ () _______ _ _____ ______ __ / // / / // // / (-