; config options server: access-control: 127.0.0.1 allow_snoop module-config: "validator iterator" qname-minimisation: "no" minimal-responses: no serve-original-ttl: yes cache-max-ttl: 1000 cache-min-ttl: 20 serve-expired: yes serve-expired-reply-ttl: 123 ede: yes ede-serve-expired: yes stub-zone: name: "example.com" stub-addr: 1.2.3.4 CONFIG_END SCENARIO_BEGIN Test serve-original-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 again after a couple seconds and check that we get the original TTL ; (next steps are combination with serve-expired) ; - query again after the TTL expired ; - check that we get the expired cached answer with the original TTL ; 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. 10 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. 10 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 a couple of seconds (< 10) STEP 11 TIME_PASSES ELAPSE 5 ; Query again STEP 20 QUERY ENTRY_BEGIN REPLY SECTION QUESTION example.com. IN A ENTRY_END ; Check that we got the cached answer with the original TTL ; (Passively checks that minimum and maximum TTLs are ignored) STEP 30 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl REPLY QR RA NOERROR SECTION QUESTION example.com. IN A SECTION ANSWER example.com. 10 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 ; Wait for the TTL to expire STEP 31 TIME_PASSES ELAPSE 3601 ; Query again STEP 40 QUERY ENTRY_BEGIN REPLY DO SECTION QUESTION example.com. IN A ENTRY_END ; Check that we got a stale answer with the original TTL STEP 50 CHECK_ANSWER ENTRY_BEGIN MATCH all ttl ede=3 REPLY QR RA DO NOERROR SECTION QUESTION example.com. IN A SECTION ANSWER example.com. 10 A 5.6.7.8 SECTION AUTHORITY example.com. NS ns.example.com. SECTION ADDITIONAL ns.example.com. A 1.2.3.4 ENTRY_END ; Give time for the pending query to get answered STEP 51 TRAFFIC SCENARIO_END