[dnsdict6 v1.4 (c) 2010 by van Hauser /   THC www.thc.org]

dnsdict6用来查询网站的ipv6地址，如果存在的话就显示，不存在的话就没有显示。可自定义线程数和字典。用法为：
Syntax: dnsdict6 [-t THREADS] domain [dictionary-file]

root@bt:~# dnsdict6 google.com
Starting enumerating google.com. – creating 8 threads for 3001 words…
Estimated time to completion: 2 to 5 minutes

ipv6.google.com. => 2404:6800:8005::6a

Found 1 domain name and 1 unique ipv6 address for google.com.
root@bt:~# dnsdict6 baidu.com
Starting enumerating baidu.com. – creating 8 threads for 3001 words…
Estimated time to completion: 2 to 5 minutes

Found 0 domain names and 0 unique ipv6 addresses for baidu.com.