; config options server: target-fetch-policy: "0 0 0 0 0" stub-zone: name: "." stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET. CONFIG_END SCENARIO_BEGIN Test resolver with a domain sale and NS changes ; and the old operator is nasty, keeps running his server with the old data. ; and lots of lookups keep going towards the domain. ; and the old server is changing the NS record of the old domain. ; 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 A SECTION AUTHORITY com. IN NS a.gtld-servers.net. SECTION ADDITIONAL a.gtld-servers.net. IN A 192.5.6.30 ENTRY_END RANGE_END ; a.gtld-servers.net. (before sale of domain) RANGE_BEGIN 0 20 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 A SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.4 ENTRY_END RANGE_END ; a.gtld-servers.net. (after sale of domain) RANGE_BEGIN 30 200 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 A SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 8.8.8.8 ENTRY_END RANGE_END ; ns.example.com. first owner RANGE_BEGIN 0 30 ADDRESS 1.2.3.4 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR AA NOERROR SECTION QUESTION example.com. IN NS SECTION ANSWER example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.4 ENTRY_END ENTRY_BEGIN MATCH opcode qname ADJUST copy_id copy_query REPLY QR AA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. 3600 IN A 10.20.30.40 SECTION AUTHORITY example.com. 3600 IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. 3600 IN A 1.2.3.4 ENTRY_END ; nxdomains for any name,type ; last in RANGE so that it matches everything left over. ; it includes the NS record. ENTRY_BEGIN MATCH opcode ADJUST copy_id copy_query REPLY QR AA NXDOMAIN SECTION QUESTION www.example.com. IN A SECTION ANSWER SECTION AUTHORITY example.com. 3600 IN SOA a. b. 1 2 3 4 5 example.com. 3600 IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. 3600 IN A 1.2.3.4 ENTRY_END RANGE_END ; ns.example.com. first owner, NS changed RANGE_BEGIN 40 200 ADDRESS 1.2.3.4 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR AA NOERROR SECTION QUESTION example.com. IN NS SECTION ANSWER example.com. IN NS nsb.example.com. SECTION ADDITIONAL nsb.example.com. IN A 1.2.3.4 ENTRY_END ENTRY_BEGIN MATCH opcode qname ADJUST copy_id copy_query REPLY QR AA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. 3600 IN A 10.20.30.40 SECTION AUTHORITY example.com. 3600 IN NS nsb.example.com. SECTION ADDITIONAL nsb.example.com. 3600 IN A 1.2.3.4 ENTRY_END ; nxdomains for any name,type ; last in RANGE so that it matches everything left over. ; it includes the NS record. ENTRY_BEGIN MATCH opcode ADJUST copy_id copy_query REPLY QR AA NXDOMAIN SECTION QUESTION www.example.com. IN A SECTION ANSWER SECTION AUTHORITY example.com. 3600 IN SOA a. b. 1 2 3 4 5 example.com. 3600 IN NS nsb.example.com. SECTION ADDITIONAL nsb.example.com. 3600 IN A 1.2.3.4 ENTRY_END RANGE_END ; ns.example.com. new owner RANGE_BEGIN 0 200 ADDRESS 8.8.8.8 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR AA NOERROR SECTION QUESTION example.com. IN NS SECTION ANSWER example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 8.8.8.8 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR AA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. 3600 IN A 88.88.88.88 SECTION AUTHORITY example.com. 3600 IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. 3600 IN A 8.8.8.8 ENTRY_END RANGE_END ; Fetch the old record from the old owner. STEP 1 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION www.example.com. IN A ENTRY_END ; recursion happens here. STEP 5 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. 3600 IN A 10.20.30.40 SECTION AUTHORITY example.com. 3600 IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. 3600 IN A 1.2.3.4 ENTRY_END ; the domain is sold (right at this time). ; but the information stays in the cache. ; after 1800 secs still the cached answer STEP 20 TIME_PASSES ELAPSE 1800 STEP 30 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION www.example.com. IN A ENTRY_END ; recursion happens here. STEP 40 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. 1800 IN A 10.20.30.40 SECTION AUTHORITY example.com. 1800 IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. 1800 IN A 1.2.3.4 ENTRY_END ; and ask another query STEP 50 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION nx1.example.com. IN A ENTRY_END ; recursion happens here. STEP 60 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NXDOMAIN SECTION QUESTION nx1.example.com. IN A SECTION ANSWER SECTION AUTHORITY ; at TTL 5 because TTL capped at ttl of minttl in rdata of SOA. example.com. 5 IN SOA a. b. 1 2 3 4 5 example.com. 3600 IN NS nsb.example.com. SECTION ADDITIONAL nsb.example.com. 3600 IN A 1.2.3.4 ENTRY_END STEP 62 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION nx1.example.com. IN A ENTRY_END ; recursion happens here. STEP 63 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NXDOMAIN SECTION QUESTION nx1.example.com. IN A SECTION ANSWER SECTION AUTHORITY ; at TTL 5 because TTL capped at ttl of minttl in rdata of SOA. example.com. 5 IN SOA a. b. 1 2 3 4 5 example.com. 1800 IN NS nsb.example.com. SECTION ADDITIONAL nsb.example.com. 3600 IN A 1.2.3.4 ENTRY_END ; after another 1900 seconds the domain must have timed out. STEP 70 TIME_PASSES ELAPSE 1900 ; the NS record should have timed out. STEP 80 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION www.example.com. IN A ENTRY_END ; recursion happens here. STEP 90 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NOERROR SECTION QUESTION www.example.com. IN A SECTION ANSWER www.example.com. 3600 IN A 88.88.88.88 SECTION AUTHORITY example.com. 3600 IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. 3600 IN A 8.8.8.8 ENTRY_END SCENARIO_END