do-ip6: no ; config options ; target-fetch-policy: "0 0 0 0 0" ; name: "." stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET. CONFIG_END SCENARIO_BEGIN Test resolution with lame reply looks like nodata with noSOA ; K.ROOT-SERVERS.NET. RANGE_BEGIN 0 100 ADDRESS 193.0.14.129 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR NOERROR SECTION QUESTION . IN NS SECTION ANSWER . IN NS K.ROOT-SERVERS.NET. SECTION ADDITIONAL K.ROOT-SERVERS.NET. IN A 193.0.14.129 ENTRY_END ENTRY_BEGIN MATCH opcode subdomain ADJUST copy_id copy_query REPLY QR NOERROR SECTION QUESTION com. IN NS SECTION AUTHORITY com. IN NS a.gtld-servers.net. SECTION ADDITIONAL a.gtld-servers.net. IN A 192.5.6.30 ENTRY_END ENTRY_BEGIN MATCH opcode subdomain ADJUST copy_id copy_query REPLY QR NOERROR SECTION QUESTION net. IN NS SECTION AUTHORITY net. IN NS e.gtld-servers.net. SECTION ADDITIONAL e.gtld-servers.net. IN A 192.12.94.30 ENTRY_END RANGE_END ; a.gtld-servers.net. RANGE_BEGIN 0 100 ADDRESS 192.5.6.30 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR NOERROR SECTION QUESTION com. IN NS SECTION ANSWER com. IN NS a.gtld-servers.net. SECTION ADDITIONAL a.gtld-servers.net. IN A 192.5.6.30 ENTRY_END ENTRY_BEGIN MATCH opcode subdomain ADJUST copy_id copy_query REPLY QR NOERROR SECTION QUESTION example.com. IN NS SECTION AUTHORITY example.com. IN NS ns.example.com. example.com. IN NS ns.example.net. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.55 ENTRY_END RANGE_END ; e.gtld-servers.net. RANGE_BEGIN 0 100 ADDRESS 192.12.94.30 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR NOERROR SECTION QUESTION net. IN NS SECTION ANSWER net. IN NS e.gtld-servers.net. SECTION ADDITIONAL e.gtld-servers.net. IN A 192.12.94.30 ENTRY_END ENTRY_BEGIN MATCH opcode subdomain ADJUST copy_id copy_query REPLY QR NOERROR SECTION QUESTION example.net. IN NS SECTION AUTHORITY example.net. IN NS ns.example.net. SECTION ADDITIONAL ns.example.net. IN A 1.2.3.44 ENTRY_END RANGE_END ; ns.example.net. ; advertises +RA so it is REC_LAME. RANGE_BEGIN 0 100 ADDRESS 1.2.3.44 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION example.net. IN NS SECTION ANSWER example.net. IN NS ns.example.net. SECTION ADDITIONAL ns.example.net. IN A 1.2.3.44 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION ns.example.net. IN A SECTION ANSWER ns.example.net. IN A 1.2.3.44 SECTION AUTHORITY example.net. IN NS ns.example.net. ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION ns.example.net. IN AAAA SECTION AUTHORITY example.net. IN NS ns.example.net. SECTION ADDITIONAL www.example.net. IN A 1.2.3.44 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION example.com. IN NS SECTION ANSWER example.com. IN NS ns.example.net. example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.55 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION ns.example.com. IN AAAA SECTION ANSWER SECTION AUTHORITY example.com. IN NS ns.example.net. example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.55 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION ns.example.com. IN A SECTION ANSWER ns.example.com. IN A 1.2.3.55 SECTION AUTHORITY example.com. IN NS ns.example.net. example.com. IN NS ns.example.com. ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. IN A 10.20.30.40 SECTION AUTHORITY example.com. IN NS ns.example.net. example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.55 ns.example.net IN A 1.2.3.44 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR RA NOERROR SECTION QUESTION mail.example.com. IN A SECTION ANSWER SECTION AUTHORITY example.com. IN NS ns.example.net. example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.55 ENTRY_END RANGE_END ; ns.example.com. ; is like a BIND server that is LAME, authoritative for other domains, ; but not this one, and somehow got this NS record in its cache. ; trying to give 'lame referral' but to the same name, not up. RANGE_BEGIN 0 100 ADDRESS 1.2.3.55 ENTRY_BEGIN MATCH opcode subdomain ADJUST copy_id copy_query REPLY QR NOERROR SECTION QUESTION example.com. IN NS SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ENTRY_END RANGE_END ; store bad timing for one server to influence server selection ; 1.2.3.44 (ns.example.net) gets 900 msec. ; so the 376 ns.example.com is preferred. ;STEP 1 INFRA_RTT 1.2.3.44 example.net. 900 STEP 10 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION www.example.com. IN A ENTRY_END ; recursion happens here. STEP 20 CHECK_ANSWER ENTRY_BEGIN MATCH all REPLY QR RD RA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. IN A 10.20.30.40 ;SECTION AUTHORITY ;example.com. IN NS ns.example.net. ;example.com. IN NS ns.example.com. ;SECTION ADDITIONAL ;ns.example.com. IN A 1.2.3.55 ; scrubbed off ;ns.example.net IN A 1.2.3.44 ENTRY_END ; query to recursion-lame server STEP 30 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION mail.example.com. IN A ENTRY_END ; It's somewhat OK if resolver accepts the only upstream lame server, ; it's also OK if it ignores lame upstream, because it's not ; provably authoritative for this zone. (kresd is the latter) STEP 40 CHECK_ANSWER ENTRY_BEGIN MATCH all REPLY QR RD RA SERVFAIL SECTION QUESTION mail.example.com. IN A SECTION ANSWER ;SECTION AUTHORITY ;example.com. IN NS ns.example.net. ;example.com. IN NS ns.example.com. ;SECTION ADDITIONAL ENTRY_END SCENARIO_END