; config options server: module-config: "validator iterator" qname-minimisation: "no" minimal-responses: no iter-scrub-promiscuous: no serve-expired: yes serve-expired-reply-ttl: 123 serve-expired-client-timeout: 0 ede: yes ede-serve-expired: yes stub-zone: name: "example.com" stub-addr: 1.2.3.4 CONFIG_END SCENARIO_BEGIN Test serve-expired with reply-ttl ; Scenario overview: ; - query for example.com. IN A ; - check that we get an answer for example.com. IN A with the correct TTL ; - query for shorterttl.example.com. IN A ; - check that we get an answer for shorterttl.example.com. IN A with the correct TTL ; - query again right after the TTL expired ; - check that we get the expired cached answer for example.com. with the configured TTL ; - check that we get the expired cached answer for shorterttl.example.com. with its own original TTL since it is shorter than the configured one ; ns.example.com. RANGE_BEGIN 0 100 ADDRESS 1.2.3.4 ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR 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 qtype qname ADJUST copy_id REPLY QR NOERROR SECTION QUESTION example.com. IN A SECTION ANSWER example.com. 200 IN A 5.6.7.8 SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.4 ENTRY_END ENTRY_BEGIN MATCH opcode qtype qname ADJUST copy_id REPLY QR NOERROR SECTION QUESTION shorterttl.example.com. IN A SECTION ANSWER shorterttl.example.com. 121 IN A 5.6.7.8 SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.4 ENTRY_END RANGE_END ; Query with RD flag STEP 1 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION example.com. IN A ENTRY_END ; Check that we got the correct answer (should be cached) STEP 10 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NOERROR SECTION QUESTION example.com. IN A SECTION ANSWER example.com. 200 IN A 5.6.7.8 SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.4 ENTRY_END STEP 11 QUERY ENTRY_BEGIN REPLY RD SECTION QUESTION shorterttl.example.com. IN A ENTRY_END STEP 12 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RD RA NOERROR SECTION QUESTION shorterttl.example.com. IN A SECTION ANSWER shorterttl.example.com. 121 IN A 5.6.7.8 SECTION AUTHORITY example.com. IN NS ns.example.com. SECTION ADDITIONAL ns.example.com. IN A 1.2.3.4 ENTRY_END ; Wait for the TTL to expire (for all rrsets; default 3600) STEP 20 TIME_PASSES ELAPSE 3600 ; Query again STEP 30 QUERY ENTRY_BEGIN REPLY RD DO SECTION QUESTION example.com. IN A ENTRY_END ; Check that we got a stale answer STEP 40 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl ede=3 REPLY QR RD RA DO NOERROR SECTION QUESTION example.com. IN A SECTION ANSWER example.com. 123 A 5.6.7.8 SECTION AUTHORITY example.com. 123 NS ns.example.com. SECTION ADDITIONAL ns.example.com. 123 A 1.2.3.4 ENTRY_END ; Query again for shorter ttl STEP 50 QUERY ENTRY_BEGIN REPLY RD DO SECTION QUESTION shorterttl.example.com. IN A ENTRY_END ; Check that we got a stale answer ; Note: auth, additional rrsets are already updated from previous recursion. STEP 60 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl ede=3 REPLY QR RD RA DO NOERROR SECTION QUESTION shorterttl.example.com. IN A SECTION ANSWER shorterttl.example.com. 121 A 5.6.7.8 SECTION AUTHORITY example.com. 3600 NS ns.example.com. SECTION ADDITIONAL ns.example.com. 3600 A 1.2.3.4 ENTRY_END ; Give time for the pending query to get answered STEP 61 TRAFFIC SCENARIO_END