DNS Resolver(s) Tested:

1. 74.125.52.93 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
2. 74.125.126.80 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
3. 74.125.126.88 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
4. 74.125.126.91 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
5. 74.125.52.92 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
6. 74.125.52.87 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
7. 74.125.126.89 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
8. 74.125.126.81 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
9. 74.125.52.80 (postnews2.google.com) appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
10. 74.125.126.86 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
11. 74.125.126.95 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
12. 74.125.52.89 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
13. 66.28.20.170 (res1-la.sys.cogentco.com) appears to have GREAT source port randomness and GREAT transaction ID randomness.
14. 74.125.126.84 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
15. 74.125.126.92 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
16. 74.125.52.81 (postnews2.google.com) appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
17. 74.125.126.87 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
18. 74.125.52.91 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.
19. 74.125.126.82 appears to have UNKNOWN source port randomness and UNKNOWN transaction ID randomness.

Test time: 2012-01-28 01:59:07 UTC

Sources that sent less than 5 queries are listed as UNKNOWN

Note that standard deviation is usually, but not always, a good indicator of randomness. Your brain is a better detector of randomness, so be sure to take a look at the scatter plots below. If you see patterns (such as straight lines), the values are probably less random than reported.

74.125.52.93 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	65343 - 65343
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	65343

74.125.52.93 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	23550 - 23550
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	23550

---

74.125.126.80 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	51749 - 51749
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	51749

74.125.126.80 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	26121 - 26121
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	26121

---

74.125.126.88 Source Port Randomness: UNKNOWN

Number of samples:	2
Unique ports:	2
Range:	52601 - 55591
Modified Standard Deviation:	2114
Bits of Randomness:	13
Values Seen:	55591 52601

74.125.126.88 Transaction ID Randomness: UNKNOWN

Number of samples:	2
Unique txids:	2
Range:	4814 - 8367
Modified Standard Deviation:	2512
Bits of Randomness:	13
Values Seen:	8367 4814

---

74.125.126.91 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	55808 - 55808
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	55808

74.125.126.91 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	26562 - 26562
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	26562

---

74.125.52.92 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	63015 - 63015
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	63015

74.125.52.92 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	15604 - 15604
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	15604

---

74.125.52.87 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	52247 - 52247
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	52247

74.125.52.87 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	51578 - 51578
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	51578

---

74.125.126.89 Source Port Randomness: UNKNOWN

Number of samples:	2
Unique ports:	2
Range:	57709 - 61785
Modified Standard Deviation:	2882
Bits of Randomness:	13
Values Seen:	61785 57709

74.125.126.89 Transaction ID Randomness: UNKNOWN

Number of samples:	2
Unique txids:	2
Range:	52545 - 52897
Modified Standard Deviation:	248
Bits of Randomness:	10
Values Seen:	52897 52545

---

74.125.126.81 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	47362 - 47362
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	47362

74.125.126.81 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	50354 - 50354
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	50354

---

74.125.52.80 Source Port Randomness: UNKNOWN

Number of samples:	2
Unique ports:	2
Range:	48552 - 53782
Modified Standard Deviation:	3698
Bits of Randomness:	14
Values Seen:	53782 48552

74.125.52.80 Transaction ID Randomness: UNKNOWN

Number of samples:	2
Unique txids:	2
Range:	27341 - 64987
Modified Standard Deviation:	26619
Bits of Randomness:	16
Values Seen:	64987 27341

---

74.125.126.86 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	58469 - 58469
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	58469

74.125.126.86 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	12117 - 12117
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	12117

---

74.125.126.95 Source Port Randomness: UNKNOWN

Number of samples:	2
Unique ports:	2
Range:	45813 - 61725
Modified Standard Deviation:	11251
Bits of Randomness:	15
Values Seen:	45813 61725

74.125.126.95 Transaction ID Randomness: UNKNOWN

Number of samples:	2
Unique txids:	2
Range:	19994 - 40352
Modified Standard Deviation:	14395
Bits of Randomness:	16
Values Seen:	19994 40352

---

74.125.52.89 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	52779 - 52779
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	52779

74.125.52.89 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	54232 - 54232
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	54232

---

66.28.20.170 Source Port Randomness: GREAT

Number of samples:	25
Unique ports:	25
Range:	2690 - 63148
Modified Standard Deviation:	19418
Bits of Randomness:	16
Values Seen:	40037 2976 49472 20421 40967 54484 14988 19035 37714 61255 35496 11541 32799 56451 2690 21531 22096 58713 27954 63148 61383 2718 47556 37712 44848

66.28.20.170 Transaction ID Randomness: GREAT

Number of samples:	25
Unique txids:	25
Range:	4222 - 50544
Modified Standard Deviation:	13981
Bits of Randomness:	16
Values Seen:	24754 46847 49819 50244 31721 4299 4368 37721 38953 31234 4222 22945 27211 22018 11542 25667 46448 35544 21470 16294 30673 27183 30022 50544 25387

---

74.125.126.84 Source Port Randomness: UNKNOWN

Number of samples:	4
Unique ports:	4
Range:	42122 - 54321
Modified Standard Deviation:	5283
Bits of Randomness:	14
Values Seen:	49291 42122 54321 45198

74.125.126.84 Transaction ID Randomness: UNKNOWN

Number of samples:	4
Unique txids:	4
Range:	2546 - 52116
Modified Standard Deviation:	20360
Bits of Randomness:	16
Values Seen:	2546 22649 52116 25041

---

74.125.126.92 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	42832 - 42832
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	42832

74.125.126.92 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	14674 - 14674
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	14674

---

74.125.52.81 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	42655 - 42655
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	42655

74.125.52.81 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	54509 - 54509
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	54509

---

74.125.126.87 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	57857 - 57857
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	57857

74.125.126.87 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	10434 - 10434
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	10434

---

74.125.52.91 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	51775 - 51775
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	51775

74.125.52.91 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	9592 - 9592
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	9592

---

74.125.126.82 Source Port Randomness: UNKNOWN

Number of samples:	1
Unique ports:	1
Range:	43226 - 43226
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	43226

74.125.126.82 Transaction ID Randomness: UNKNOWN

Number of samples:	1
Unique txids:	1
Range:	1668 - 1668
Modified Standard Deviation:	0
Bits of Randomness:	0
Values Seen:	1668

---

See CERT VU #800113 for information on the DNS cache poisoning vulnerability.

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