Voici ce que donne la commande :
# nslookup -debug
;; res_mkquery(0, 10.200.9.192.in-addr.arpa, 1, 12)
------------
Got answer:
HEADER:
opcode = QUERY, id = 45254, rcode = NXDOMAIN
header flags: response, auth. answer, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 1, additional = 0
QUESTIONS:
10.200.9.192.in-addr.arpa, type = PTR, class = IN
AUTHORITY RECORDS:
-> (root)
ttl = 3600 (1 hour)
origin = chanfic.trem.bod
mail addr = admin.trem.bod
serial = 35
refresh = 900 (15 mins)
retry = 600 (10 mins)
expire = 86400 (1 day)
minimum ttl = 3600 (1 hour)
------------
*** Can't find server name for address 192.9.200.10: Non-existent host/domain
;; res_mkquery(0, 16.20.17.172.in-addr.arpa, 1, 12)
timeout (5 secs)
timeout (10 secs)
timeout (20 secs)
Peace ...