0b1ed0233c
but delays next prefetch (in lieu of caching a SERVFAIL). git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@3111 be551aaa-1e26-0410-a405-d3ace91eadb9
394 lines
7.7 KiB
Plaintext
394 lines
7.7 KiB
Plaintext
; config options
|
|
server:
|
|
target-fetch-policy: "0 0 0 0 0"
|
|
prefetch: "yes"
|
|
|
|
stub-zone:
|
|
name: "."
|
|
stub-addr: 193.0.14.129 # K.ROOT-SERVERS.NET.
|
|
CONFIG_END
|
|
|
|
SCENARIO_BEGIN Test resolver prefetch where it fails to fetch
|
|
|
|
; K.ROOT-SERVERS.NET.
|
|
RANGE_BEGIN 0 200
|
|
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
|
|
RANGE_END
|
|
|
|
; a.gtld-servers.net.
|
|
RANGE_BEGIN 0 200
|
|
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 NS
|
|
SECTION AUTHORITY
|
|
example.com. IN NS ns.example.com.
|
|
SECTION ADDITIONAL
|
|
ns.example.com. IN A 1.2.3.4
|
|
ENTRY_END
|
|
RANGE_END
|
|
|
|
; ns.example.com.
|
|
RANGE_BEGIN 0 40
|
|
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
|
|
ns.example.com. IN AAAA
|
|
SECTION ANSWER
|
|
SECTION AUTHORITY
|
|
example.com. IN SOA ns.example.com. hostmaster.example.com. 1 2 3 4 5
|
|
ENTRY_END
|
|
|
|
ENTRY_BEGIN
|
|
MATCH opcode qtype qname
|
|
ADJUST copy_id
|
|
REPLY QR NOERROR
|
|
SECTION QUESTION
|
|
ns.example.com. IN A
|
|
SECTION ANSWER
|
|
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
|
|
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
|
|
RANGE_END
|
|
|
|
; ns.example.com.
|
|
RANGE_BEGIN 50 100
|
|
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
|
|
ns.example.com. IN A
|
|
SECTION ANSWER
|
|
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
|
|
ns.example.com. IN AAAA
|
|
SECTION ANSWER
|
|
SECTION AUTHORITY
|
|
example.com. IN SOA ns.example.com. hostmaster.example.com. 1 2 3 4 5
|
|
ENTRY_END
|
|
|
|
ENTRY_BEGIN
|
|
MATCH opcode qtype qname
|
|
ADJUST copy_id
|
|
REPLY QR AA SERVFAIL
|
|
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
|
|
RANGE_END
|
|
|
|
; note ns.example.com range for steps 100 - 160 is not entered
|
|
; no queries should be sent there
|
|
|
|
; ns.example.com.
|
|
RANGE_BEGIN 160 200
|
|
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
|
|
ns.example.com. IN AAAA
|
|
SECTION ANSWER
|
|
SECTION AUTHORITY
|
|
example.com. IN SOA ns.example.com. hostmaster.example.com. 1 2 3 4 5
|
|
ENTRY_END
|
|
|
|
ENTRY_BEGIN
|
|
MATCH opcode qtype qname
|
|
ADJUST copy_id
|
|
REPLY QR NOERROR
|
|
SECTION QUESTION
|
|
ns.example.com. IN A
|
|
SECTION ANSWER
|
|
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
|
|
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
|
|
RANGE_END
|
|
|
|
STEP 1 QUERY
|
|
ENTRY_BEGIN
|
|
REPLY RD
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
ENTRY_END
|
|
|
|
; recursion happens here.
|
|
STEP 10 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
|
|
|
|
; 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
|
|
|
|
; after 1440 we are 360 seconds before the expiry
|
|
; (the authority changes behind the scenes to detect new lookup)
|
|
STEP 50 TIME_PASSES ELAPSE 1440
|
|
|
|
STEP 60 QUERY
|
|
ENTRY_BEGIN
|
|
REPLY RD
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
ENTRY_END
|
|
; recursion happens here.
|
|
STEP 70 CHECK_ANSWER
|
|
ENTRY_BEGIN
|
|
MATCH all ttl
|
|
REPLY QR RD RA NOERROR
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
SECTION ANSWER
|
|
www.example.com. 360 IN A 10.20.30.40
|
|
SECTION AUTHORITY
|
|
example.com. 360 IN NS ns.example.com.
|
|
SECTION ADDITIONAL
|
|
ns.example.com. 360 IN A 1.2.3.4
|
|
ENTRY_END
|
|
STEP 80 TRAFFIC
|
|
; let traffic flow for prefetch to happen
|
|
|
|
; above a cache reply with 10% of the original TTL
|
|
; but the actual cache could have been updated, try to get that
|
|
STEP 120 QUERY
|
|
ENTRY_BEGIN
|
|
REPLY RD
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
ENTRY_END
|
|
; recursion happens here.
|
|
STEP 130 CHECK_ANSWER
|
|
ENTRY_BEGIN
|
|
MATCH all ttl
|
|
REPLY QR RD RA NOERROR
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
SECTION ANSWER
|
|
www.example.com. 360 IN A 10.20.30.40
|
|
SECTION AUTHORITY
|
|
example.com. 360 IN NS ns.example.com.
|
|
SECTION ADDITIONAL
|
|
; this is picked up from the parent (because this simulation has the
|
|
; parent respond with servfail, not actually timeout)
|
|
ns.example.com. 3600 IN A 1.2.3.4
|
|
ENTRY_END
|
|
|
|
; another query to see if there is another lookup towards the authority
|
|
; the server should not send too many queries towards the authority
|
|
STEP 140 QUERY
|
|
ENTRY_BEGIN
|
|
REPLY RD
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
ENTRY_END
|
|
; recursion happens here.
|
|
STEP 150 CHECK_ANSWER
|
|
ENTRY_BEGIN
|
|
MATCH all ttl
|
|
REPLY QR RD RA NOERROR
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
SECTION ANSWER
|
|
www.example.com. 360 IN A 10.20.30.40
|
|
SECTION AUTHORITY
|
|
example.com. 360 IN NS ns.example.com.
|
|
SECTION ADDITIONAL
|
|
ns.example.com. 3600 IN A 1.2.3.4
|
|
ENTRY_END
|
|
|
|
; some time later another query, and now it is fine to bother the authority
|
|
; with another lookup attempt.
|
|
STEP 160 TIME_PASSES ELAPSE 30
|
|
; so we are now 330 seconds before expiry.
|
|
STEP 170 QUERY
|
|
ENTRY_BEGIN
|
|
REPLY RD
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
ENTRY_END
|
|
; recursion happens here.
|
|
STEP 180 CHECK_ANSWER
|
|
ENTRY_BEGIN
|
|
MATCH all ttl
|
|
REPLY QR RD RA NOERROR
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
SECTION ANSWER
|
|
www.example.com. 330 IN A 10.20.30.40
|
|
SECTION AUTHORITY
|
|
example.com. 330 IN NS ns.example.com.
|
|
SECTION ADDITIONAL
|
|
ns.example.com. 3570 IN A 1.2.3.4
|
|
ENTRY_END
|
|
; now the just-looked-up entry
|
|
STEP 190 QUERY
|
|
ENTRY_BEGIN
|
|
REPLY RD
|
|
SECTION QUESTION
|
|
www.example.com. IN A
|
|
ENTRY_END
|
|
; recursion happens here.
|
|
STEP 200 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. 3570 IN A 1.2.3.4
|
|
ENTRY_END
|
|
|
|
|
|
SCENARIO_END
|