File: iter_prefetch_change.rpl

package info (click to toggle)
unbound 1.6.0-2~bpo8+1
  • links: PTS, VCS
  • area: main
  • in suites: jessie-backports
  • size: 20,444 kB
  • sloc: ansic: 79,862; sh: 5,040; yacc: 1,900; makefile: 1,315; python: 1,302; perl: 141
file content (364 lines) | stat: -rw-r--r-- 7,358 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
; 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 and a moved domain
; for bug #425.

; K.ROOT-SERVERS.NET.
RANGE_BEGIN 0 500
	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 30
	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.	86400 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.		86400 IN 	A	192.168.0.1
ENTRY_END
RANGE_END

; a.gtld-servers.net. (after sale of domain)
RANGE_BEGIN 40 500
	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.	86400 IN NS	new-ns.example.com.
SECTION ADDITIONAL
new-ns.example.com.		86400 IN 	A	172.16.0.1
ENTRY_END
RANGE_END

; ns.example.com. first owner
RANGE_BEGIN 0 500
	ADDRESS 192.168.0.1
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR AA NOERROR
SECTION QUESTION
example.com. IN NS
SECTION ANSWER
example.com.	86400 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.		86400 IN 	A	192.168.0.1
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	10.1.1.1
SECTION AUTHORITY
example.com.	86400 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.		86400 IN 	A	192.168.0.1
ENTRY_END
RANGE_END

; ns.example.com. new owner
RANGE_BEGIN 0 500
	ADDRESS 172.16.0.1
ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR AA NOERROR
SECTION QUESTION
example.com. IN NS
SECTION ANSWER
example.com.	86400 IN NS	new-ns.example.com.
SECTION ADDITIONAL
new-ns.example.com.		86400 IN 	A	172.16.0.1
ENTRY_END

ENTRY_BEGIN
MATCH opcode qtype qname
ADJUST copy_id
REPLY QR AA NOERROR
SECTION QUESTION
old-ns.example.com. IN A
SECTION ANSWER
old-ns.example.com. 86400 IN A	172.16.0.1
SECTION AUTHORITY
example.com.	86400 IN NS	new-ns.example.com.
SECTION ADDITIONAL
new-ns.example.com.		86400 IN 	A	172.16.0.1
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	10.2.2.2
SECTION AUTHORITY
example.com.	86400 IN NS	new-ns.example.com.
SECTION ADDITIONAL
new-ns.example.com.		86400 IN 	A	172.16.0.1
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	10.1.1.1
SECTION AUTHORITY
example.com.		86400 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.	86400 IN A	192.168.0.1
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	10.1.1.1
SECTION AUTHORITY
example.com.		84600 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.	84600 IN A	192.168.0.1
ENTRY_END

; after 1440 we are 360 seconds before the expiry
; but it still contacts the old-ns
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	10.1.1.1
SECTION AUTHORITY
example.com.		83160 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.	83160 IN A	192.168.0.1
ENTRY_END

STEP 80 TRAFFIC
; let traffic flow for prefetch to happen

; we updated from the old-ns.
STEP 90 QUERY
ENTRY_BEGIN
REPLY RD
SECTION QUESTION
www.example.com. IN A
ENTRY_END
; recursion happens here.
STEP 100 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	10.1.1.1
SECTION AUTHORITY
example.com.		83160 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.	83160 IN A	192.168.0.1
ENTRY_END

; the NS record is now 10% from expiry (8640 TTL left).
; and the A record has expired completely, retry.
STEP 110 TIME_PASSES ELAPSE 74520

; the NS record should have timed out.
; but you see the full TTL here, this is only for *this query*
; in the cache itself its 8640, not 86400.
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.	3600 IN A	10.1.1.1
SECTION AUTHORITY
example.com.		8640 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.	8640 IN A	192.168.0.1
ENTRY_END

; get it from cache
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.	3600 IN A	10.1.1.1
SECTION AUTHORITY
example.com.		8640 IN NS	old-ns.example.com.
SECTION ADDITIONAL
old-ns.example.com.	8640 IN A	192.168.0.1
ENTRY_END

; the NS record times out after 8640 seconds.
STEP 160 TIME_PASSES ELAPSE 8641

; fetch it
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.	3600 IN A	10.2.2.2
SECTION AUTHORITY
example.com.		86400 IN NS	new-ns.example.com.
SECTION ADDITIONAL
new-ns.example.com.	86400 IN A	172.16.0.1
ENTRY_END

; a reply from cache 
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	10.2.2.2
SECTION AUTHORITY
example.com.		86400 IN NS	new-ns.example.com.
SECTION ADDITIONAL
new-ns.example.com.	86400 IN A	172.16.0.1
ENTRY_END

SCENARIO_END