[Internet-e-architetture-di-rete] ancora su resolver e autoritativi

[Emanuela Pompei]

ciao
quindi..
dig gnu.org A

; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> gnu.org A
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50945
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;gnu.org.            IN    A

;; ANSWER SECTION:
gnu.org.        95    IN    A    208.118.235.148

;; Query time: 21 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Tue May 17 16:01:22 CEST 2016
;; MSG SIZE  rcvd: 41

 dig gnu.org mx

; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> gnu.org mx
;; global options: +cmd
;; connection timed out; no servers could be reached

... risponde solo alle query IN A non e' configurato per rispondere ad altro ok.
grazie
emanuela