查看DNS服务器的BIND版本号
查看广东DNS版本
dig @202.96.128.86 txt chaos version.bind
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.37.rc1.el6_7.4 <<>> @202.96.128.86 txt chaos version.bind
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2999
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;version.bind. CH TXT
;; ANSWER SECTION:
version.bind. 0 CH TXT "Nominum Vantio 4.3.0.2"
;; Query time: 17 msec
;; SERVER: 202.96.128.86#53(202.96.128.86)
;; WHEN: Sat Oct 31 00:17:45 2015
;; MSG SIZE rcvd: 65
Nominum Vantio 4.3.0.2为DNS版本
原文：http://tianshili.blog.51cto.com/5050423/1708257