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|
; config options
server:
target-fetch-policy: "0 0 0 0 0"
qname-minimisation: no
minimal-responses: no
serve-expired: no
module-config: "cachedb iterator"
cachedb:
backend: "testframe"
secret-seed: "testvalue"
stub-zone:
name: "."
stub-addr: 193.0.14.129
CONFIG_END
SCENARIO_BEGIN Test cachedb store and servfail reply from cname.
; the servfail reply should not overwrite the cache contents.
; 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
RANGE_END
; a.gtld-servers.net.
RANGE_BEGIN 0 100
ADDRESS 192.5.6.30
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 ns2.example.com.
SECTION ADDITIONAL
ns2.example.com. IN A 1.2.3.5
ENTRY_END
ENTRY_BEGIN
MATCH opcode subdomain
ADJUST copy_id copy_query
REPLY QR NOERROR
SECTION QUESTION
foo.com. IN NS
SECTION AUTHORITY
foo.com. IN NS ns.example.com.
ENTRY_END
RANGE_END
; ns2.example.com.
RANGE_BEGIN 0 20
ADDRESS 1.2.3.5
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
RANGE_END
; ns2.example.com., now failing
RANGE_BEGIN 20 100
ADDRESS 1.2.3.5
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN CNAME foo.example.com.
ENTRY_END
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA SERVFAIL
SECTION QUESTION
foo.example.com. IN A
ENTRY_END
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA SERVFAIL
SECTION QUESTION
ns2.example.com. IN A
SECTION ANSWER
ENTRY_END
ENTRY_BEGIN
MATCH opcode qname qtype
REPLY QR AA SERVFAIL
SECTION QUESTION
ns2.example.com. IN AAAA
SECTION ANSWER
ENTRY_END
RANGE_END
; get and entry in cache, to make it expired.
STEP 1 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; get the answer for it
STEP 10 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA NOERROR
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN A 1.2.3.4
ENTRY_END
; it is now expired
STEP 20 TIME_PASSES ELAPSE 20
; get a servfail in cache for the destination
STEP 30 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
foo.example.com. IN A
ENTRY_END
STEP 40 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA SERVFAIL
SECTION QUESTION
foo.example.com. IN A
ENTRY_END
; the query is now a CNAME to servfail.
; there is a valid, but expired, entry in cache.
STEP 50 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
STEP 60 CHECK_ANSWER
ENTRY_BEGIN
MATCH all
REPLY QR RD RA SERVFAIL
SECTION QUESTION
www.example.com. IN A
SECTION ANSWER
www.example.com. 10 IN CNAME foo.example.com.
ENTRY_END
SCENARIO_END
|
