Cisco Cisco Email Security Appliance C170 기술 참조

The 

dig

 command filters out the information in the Authority and Additional sections if you do not 

explicitly specify the DNS server when using the command.

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18540

;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 

3

;; QUESTION SECTION:

;example.com.                       IN      MX

;; ANSWER SECTION:

mexample.com.                10800   IN      MX      10 mexample.com.

;; AUTHORITY SECTION:

example.com.                     10800   IN      NS      

test.example.com.

;; ADDITIONAL SECTION:

example.com. 10800 IN      A       111.111.111.111

example.com. 10800 IN      AAAA    2620:101:2004:4201::bd

example.com.   300     IN      A       111.111.111.111

;; Query time: 6 msec

;; SERVER: 10.92.144.4#53(10.92.144.4)

;; WHEN: Fri Dec  9 23:37:42 2011

;; MSG SIZE  rcvd: 143