6.2.2. QNAME=SRI-NIC.ARPA, QTYPE=*
Connected: An Internet Encyclopedia
6.2.2. QNAME=SRI-NIC.ARPA, QTYPE=*
Up:
Connected: An Internet Encyclopedia
Up:
Requests For Comments
Up:
RFC 1034
Up:
6. A SCENARIO
Up:
6.2. Example standard queries
Prev: 6.2.1. QNAME=SRI-NIC.ARPA, QTYPE=A
Next: 6.2.3. QNAME=SRI-NIC.ARPA, QTYPE=MX
6.2.2. QNAME=SRI-NIC.ARPA, QTYPE=*
6.2.2. QNAME=SRI-NIC.ARPA, QTYPE=*
A query similar to the previous one, but using a QTYPE of *, would
receive the following response from C.ISI.EDU:
+---------------------------------------------------+
Header | OPCODE=SQUERY, RESPONSE, AA |
+---------------------------------------------------+
Question | QNAME=SRI-NIC.ARPA., QCLASS=IN, QTYPE=* |
+---------------------------------------------------+
Answer | SRI-NIC.ARPA. 86400 IN A 26.0.0.73 |
| A 10.0.0.51 |
| MX 0 SRI-NIC.ARPA. |
| HINFO DEC-2060 TOPS20 |
+---------------------------------------------------+
Authority | <empty> |
+---------------------------------------------------+
Additional | <empty> |
+---------------------------------------------------+
If a similar query was directed to two name servers which are not
authoritative for SRI-NIC.ARPA, the responses might be:
+---------------------------------------------------+
Header | OPCODE=SQUERY, RESPONSE |
+---------------------------------------------------+
Question | QNAME=SRI-NIC.ARPA., QCLASS=IN, QTYPE=* |
+---------------------------------------------------+
Answer | SRI-NIC.ARPA. 12345 IN A 26.0.0.73 |
| A 10.0.0.51 |
+---------------------------------------------------+
Authority | <empty> |
+---------------------------------------------------+
Additional | <empty> |
+---------------------------------------------------+
and
+---------------------------------------------------+
Header | OPCODE=SQUERY, RESPONSE |
+---------------------------------------------------+
Question | QNAME=SRI-NIC.ARPA., QCLASS=IN, QTYPE=* |
+---------------------------------------------------+
Answer | SRI-NIC.ARPA. 1290 IN HINFO DEC-2060 TOPS20 |
+---------------------------------------------------+
Authority | <empty> |
+---------------------------------------------------+
Additional | <empty> |
+---------------------------------------------------+
Neither of these answers have AA set, so neither response comes from
authoritative data. The different contents and different TTLs suggest
that the two servers cached data at different times, and that the first
server cached the response to a QTYPE=A query and the second cached the
response to a HINFO query.
Next: 6.2.3. QNAME=SRI-NIC.ARPA, QTYPE=MX
Connected: An Internet Encyclopedia
6.2.2. QNAME=SRI-NIC.ARPA, QTYPE=*
|
