[GTER] Fwd: Per-ASN data (Re: Open Resolver Problems)

Mon Apr 1 14:52:58 -03 2013

Criei um script em python (https://github.com/Desenvolve/openresolvers) que
usa o openresolverproject.org e que gera os open resolvers. Esse site ele
só retorna uma lista para cada /24, mas no script que fiz voce pode colocar
blocos /20, /16, o que for que ele consulta uma vez para cada /24.

Depois de consultar, testa se o servidor de DNS é um openresolver mesmo.

O ideal é testar de fora de sua rede.

Aqui encontrei alguns clientes de servidores Cloud que deixaram aberto o
recursivo. Provavelmente nao colocaram "recursion no;" no named.conf. Ja
notificamos eles e vamos bloquear no firewall caso nao respondam em tempo.

Esse script que fiz usa esses dados do openresolverproject, mas se alguem
quiser contribuir, podemos melhorar e consultar direto. O problema do
openresolverproject é que eles nao retornam realmente open resolver, mas
sim servidor de DNS.

Tambem nao sei se esta atualizado.

Que outras ferramentas que voces sugerem?

On Thu, Mar 28, 2013 at 5:07 PM, Rubens Kuhl <rubensk at gmail.com> wrote:

> Lista por ASN do outro site que mencionei (openresolvers.org), onde o AS
> 8167 não é o líder mundial, apesar de estar muito bem (leia-se mal)
> colocado.
>
>
> Rubens
>
>
> ---------- Forwarded message ----------
> From: Jared Mauch <jared at puck.nether.net>
> Date: Thu, Mar 28, 2013 at 3:16 PM
> Subject: Per-ASN data (Re: Open Resolver Problems)
> To: nanog at mitteilung.com
> Cc: nanog at nanog.org
>
>
>
> I wanted to share PER-ASN data for those that are interested in this
> generally.  If you are a contact for these ASNs, you can e-mail me from
> your corporate address to get access to the list.
>
> Thank you for many of you that have secured hosts!!!!
>
> COUNT ASN#
> 1357979 4134
> 1144551 8151
> 1089464 9121
>  896102 3462
>  623486 45899
>  618161 4837
>  554655 17974
>  513878 13285
>  486146 22927
>  486081 3352
>  483686 209
>  457952 3269
>  423432 9318
>  377811 1267
>  356685 5617
>  334125 19262
>  318274 24560
>  291114 4766
>  266952 9198
>  248563 9050
>  245165 18403
>  233639 18881
>  230318 9737
>  229251 7418
>  228180 8167
>  223017 36947
>  221978 7303
>  221487 43234
>  219076 3215
>  216288 8452
>  207389 3816
>  197305 5610
>  194241 45758
>  194227 45629
>  191824 19429
>  184158 4812
>  183616 6697
>  177759 9829
>  177058 17813
>  175616 36351
>  166778 17552
>  163671 6147
>  140349 8400
>  138785 21844
>  138369 9299
>  128307 8866
>  120188 13489
>  117991 5390
>  115057 4788
>  111726 7552
>  108487 9394
>  105874 47589
>   94346 4713
>   93301 7738
>   91777 6849
>   85895 24863
>   82668 12741
>   79534 9269
>   77572 6389
>   77428 32244
>   77166 9105
>   76574 12874
>   76104 4808
>   73145 24940
>   67576 6400
>   66648 12880
>   65260 45595
>   64153 32475
>   63932 6332
>   60420 2379
>   54987 14420
>   54299 12297
>   52710 6830
>   52274 30722
>   51229 26496
>   49623 6057
>   49488 13036
>   48045 3320
>   47141 2554
>   46894 5384
>   46790 6855
>   44998 32613
>   44090 2516
>   42977 36444
>   42588 36992
>   40757 7018
>   39099 46606
>   38890 7385
>   38714 5650
>   38622 9158
>   38466 8997
>   38451 8560
>   37635 2856
>   37494 5089
>   36477 6730
>   36057 7132
>   35626 12301
>   35556 8612
>   34938 24835
>   34652 31549
>   34547 22394
>   34546 6713
>   34274 12978
>   34214 8359
>   33944 22561
>   33886 44957
>   33763 286
>   33548 1136
>   32513 17816
>   32481 55430
>   32439 7545
>   31919 4780
>   30890 27695
>   30410 21788
>   29843 15557
>   29639 28812
>   29512 1221
>   29463 35805
>   28758 41440
>   28602 47794
>   28533 43447
>   28494 16265
>   28268 34296
>   28196 25019
>   28000 4847
>   27701 13354
>   27498 9146
>   27370 27699
>   27211 6799
>   27021 13768
>   27017 20773
>   26858 17676
>   26622 41592
>   26610 44178
>   26233 25847
>   25962 2609
>   25751 3301
>   25732 15975
>   25730 8376
>   25526 29256
>   24531 19066
>   24342 6983
>   23560 25405
>   23445 33774
>   23185 17511
>   23058 34170
>   22868 17430
>   22670 8926
>   22003 19029
>   21958 4538
>   21860 12576
>   21596 25653
>   21496 10036
>   21009 29386
>   20915 8972
>   20640 9808
>   20429 22833
>   20375 13999
>   20102 11398
>   19931 30496
>   19906 34984
>   19839 5778
>   19635 9824
>   19469 12912
>   19350 17858
>   19327 9143
>   18896 9329
>   18878 7029
>   18757 8968
>   18667 56046
>   18658 8708
>   18309 6877
>   18040 25513
>   17877 11830
>   17718 4802
>   17699 11556
>   17619 2119
>   16924 28787
>   16772 4230
>   16672 174
>   16373 7497
>   16370 53006
>   16309 29550
>   16079 17762
>   15825 23352
>   15718 40244
>   15673 29049
>   15590 17964
>   15571 4725
>   15289 13213
>   15122 25144
>   15026 33182
>   14698 56040
>   14615 35819
>   14613 10474
>   14555 20860
>   14410 21003
>   14408 48159
>   14381 2514
>   14219 26599
>   14174 9790
>   14149 9125
>   14147 22773
>   14138 33812
>   14132 2527
>   14107 12260
>   14043 3303
>   14001 29182
>   13969 20825
>   13881 18566
>   13865 25515
>   13863 56041
>   13710 20738
>   13612 25490
>   13511 9605
>   13360 1785
>   13333 23752
>   13147 35041
>   13048 9845
>   12989 39501
>   12986 9924
>   12938 3292
>   12902 2828
>   12886 6703
>   12831 2518
>   12704 20676
>   12328 20115
>   12325 46475
>   12306 12486
>   12216 4323
>   12209 15589
>   12206 32748
>   12180 701
>   12105 36137
>   12083 3209
>   11967 8551
>   11934 23889
>   11916 4775
>   11903 13977
>   11821 3329
>   11771 10299
>   11768 22822
>   11740 16086
>   11705 9116
>   11705 3651
>   11570 25124
>   11533 33070
>   11531 12683
>   11483 6739
>   11475 15003
>   11459 45951
>   11423 6871
>   11364 131090
>   11244 24158
>   11217 16276
>   11115 5432
>   11079 5410
>   10726 2497
>   10678 17623
>   10651 3239
>   10497 10796
>   10416 7657
>   10393 8402
>   10388 12332
>   10380 58085
>   10380 17621
>   10332 5483
>   10300 22368
>   10280 3595
>   10272 45609
>   10207 9617
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