SV_RFC1034_3_6_2_no_other_data - CNAME RR is present at a node, no other data should be present
Verify that a NUT does not transmit response including multiple CNAME RR.
Authoritative Server
SV_RFC1034_3_6_2_no_other_data.seq [-tooloption ...]: KOI tool option See also DNSConfig.pm
AP Server1 (TN) |3ffe:501:ffff:101::10,11 |192.168.1.10,11 | Net-y --+--------+-------------------------- 3ffe:501:ffff:101::/64 | 192.168.1/24 | | Router (TN) |3ffe:501:ffff:100::1 |192.168.0.1 | | Net-z --+--------+-----------------+-------- 3ffe:501:ffff:100::/64 | | 192.168.0/24 | | DNS Server1 (NUT) DNS Client1 (TN) 3ffe:501:ffff:100::XXXX 3ffe:501:ffff:100::20 192.168.0.10 192.168.0.20
XXXX: EUI64
$TTL 86400 ; TTL of 1 day @ IN SOA NS1.example.com. root.example.com. ( 2005081600 ; serial 3600 ; refresh every 1 hr 900 ; retry every 15 min 604800 ; expire after a week 3600 ; Minimum TTL of a 1 hr ) ; IN NS NS1.example.com. NS1 IN A 192.168.0.10 A1 IN A 192.168.1.10 A2 IN A 192.168.1.11 ; B IN CNAME A1.example.com. B IN CNAME A2.example.com.
This test sequence is following.
DNS Client1 (TN) DNS Server1 (NUT) | | |------------------------------------->| | 1. Send standard query | | QNAME=B.example.com | | QTYPE=CNAME | | | | X <----------------------------------| | 2. Standard query response | | QNAME=B.example.com | | QTYPE=CNAME | | ANSWER Name=B.example.com | | ANSWER Type=CNAME | | ANSWER CNAME=A1.example.com | | ANSWER Name=B.example.com | | ANSWER Type=CNAME | | ANSWER CNAME=A2.example.com | | | | | v v
1. TN send standard query QNAME=B1.example.com, QTYPE=A to NUT. 2. NUT reply query response including CNAME=A1.example.com, CNAME=A2.example.com to TN (Judgment *2)
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IP Header | Source Address | CL1_NETZ |
Destination Address | NUT_NETZ | |
UDP Header | Src Port | 2000 |
Dst Port | 53 | |
DNS Header | ID | 0x1000 |
QR | 0 | |
OPCODE | 0 | |
AA | 0 | |
TC | 0 | |
RD | 1 | |
RA | 0 | |
Z | 0 | |
RCODE | 0 | |
QDCOUNT | 1 | |
ANCOUNT | 0 | |
NSCOUNT | 0 | |
ARCOUNT | 0 | |
DNS Question section | QNAME | B.example.com |
QTYPE | CNAME (0x0005) | |
QCLASS | IN (0x0001) |
NUT_NETZ | DNS Server1's (NUT) Net-z address |
CL1_NETZ | DNS Client1's (TN) Net-z address |
2. Not received standard query response including CNAME.
None
RFC1034 DOMAIN NAMES - CONCEPTS AND FACILITIES 3.6.2. Aliases and canonical names