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緊急連絡用ツイッタハァ [https://twitter.com/SideburnWhite @SideburnWhite] | 緊急連絡用ツイッタハァ [https://twitter.com/SideburnWhite @SideburnWhite] | ||
==2016年8月27日夜~28日未明のサーバーダウンに関して== | |||
ご迷惑をおかけしもうしわけありませんでした。昨日21時頃から断続的に続いているDDoS攻撃により、当職の管理する恒心関連鯖がすべてダウンしてしまったことをお詫び申し上げます。 | |||
時系列については[https://gotanda.xyz/test/read.cgi/simonton/1469375489/857/ サヒケー当該スレ]からそのままコピーさせていただきますを | |||
<pre style="white-space:pre-wrap;"> | |||
今回の原因はgotanda鯖へのDDoS攻撃を発端とする大規模なDDoS攻撃ナリ | |||
21時少し前にgotanda鯖へ大規模なDDoS攻撃があり、接続を遮断されてしまったナリ | |||
この後sonshi鯖への統合を図るものの、sonshi鯖も同様の理由で落とされてしまいましたを | |||
時期を同じくして、したらば掲示板やクヒケーといった他のカラケーもダウンしたナリ | |||
クヒケーはDDoS攻撃が収まったのかそのまま復旧したようナリが、サヒケーは攻撃が継続していたために再度接続を遮断されてしまったナリ | |||
唐澤Wikiは接続を遮断されて以降復旧しないので、仕方なく深夜の日次バックアップから復旧させましたを | |||
サヒケーは1時間置きのバックアップがあったので、20時台のバックアップを使用して復旧させたナリ | |||
ただ復旧先は当職が個人的に借りている鯖ナリ | |||
</pre> | |||
[ | なおこの攻撃は当職はUDP Flood攻撃と判断しているナリ | ||
当職頭[[出口保行|出口]]なので間違っているかもしれないナリが | |||
UDPは発信元が偽装できるのでログ中の送信元IPアドレスは役に立たないナリ | |||
<pre style="white-space:pre-wrap;"> | |||
Aug 27 21:36:39 sonshi kernel: [7929295.467597] UDP: short packet: From 180.162.209.46:53 4103/1456 to 93.158.216.137:2238 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.411152] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:20774 ulen 1213 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.477104] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:7601 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.487572] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:7601 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.492211] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:38136 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.492313] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:38136 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.500398] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:7601 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.511018] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:7601 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.635114] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:8827 | |||
Aug 27 21:36:41 sonshi kernel: [7929297.655792] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:8827 | |||
Aug 27 21:36:47 sonshi kernel: [7929303.603911] net_ratelimit: 17 callbacks suppressed | |||
Aug 27 21:36:47 sonshi kernel: [7929303.603927] UDP: short packet: From 116.226.25.148:53 4103/1456 to 93.158.216.137:31389 | |||
Aug 27 21:36:47 sonshi kernel: [7929303.734287] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:52885 | |||
Aug 27 21:36:47 sonshi kernel: [7929303.772556] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:52885 | |||
Aug 27 21:36:47 sonshi kernel: [7929303.836639] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:51008 | |||
Aug 27 21:36:47 sonshi kernel: [7929303.936228] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:17185 | |||
Aug 27 21:36:48 sonshi kernel: [7929304.033961] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:59837 | |||
Aug 27 21:36:48 sonshi kernel: [7929304.059908] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:59837 | |||
Aug 27 21:36:48 sonshi kernel: [7929304.137056] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:1890 | |||
Aug 27 21:36:48 sonshi kernel: [7929304.837682] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:59668 | |||
Aug 27 21:36:48 sonshi kernel: [7929304.949115] UDP: short packet: From 202.98.192.196:53 4079/1480 to 93.158.216.137:11112 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.155728] net_ratelimit: 13 callbacks suppressed | |||
Aug 27 21:36:54 sonshi kernel: [7929310.155743] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:6948 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.155817] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:6948 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.165421] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:11719 ulen 1213 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.165500] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:11719 ulen 1213 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.196313] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:6948 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.250807] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:35851 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.283777] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:28733 ulen 1213 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.383643] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:38734 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.395008] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:38734 | |||
Aug 27 21:36:54 sonshi kernel: [7929310.687509] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:24669 | |||
Aug 27 21:37:00 sonshi kernel: [7929316.160688] net_ratelimit: 14 callbacks suppressed | |||
Aug 27 21:37:00 sonshi kernel: [7929316.160702] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:36831 ulen 1213 | |||
Aug 27 21:37:00 sonshi kernel: [7929316.246854] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:23014 | |||
Aug 27 21:37:00 sonshi kernel: [7929316.292720] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:18590 | |||
Aug 27 21:37:00 sonshi kernel: [7929316.536215] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:27984 | |||
Aug 27 21:37:00 sonshi kernel: [7929316.755642] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:64313 | |||
Aug 27 21:37:00 sonshi kernel: [7929316.789666] UDP: short packet: From 116.226.25.148:53 4103/1456 to 93.158.216.137:36264 | |||
Aug 27 21:37:01 sonshi kernel: [7929316.983404] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:24783 | |||
Aug 27 21:37:01 sonshi kernel: [7929317.029610] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:21296 | |||
Aug 27 21:37:01 sonshi kernel: [7929317.196467] UDP: short packet: From 202.98.192.196:53 4079/1480 to 93.158.216.137:10910 | |||
Aug 27 21:37:01 sonshi kernel: [7929317.273167] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:33390 | |||
Aug 27 21:37:06 sonshi kernel: [7929322.506183] net_ratelimit: 19 callbacks suppressed | |||
Aug 27 21:37:06 sonshi kernel: [7929322.506201] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:7543 ulen 1213 | |||
Aug 27 21:37:06 sonshi kernel: [7929322.576539] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:61940 | |||
Aug 27 21:37:07 sonshi kernel: [7929323.246900] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:53224 ulen 1213 | |||
Aug 27 21:37:07 sonshi kernel: [7929323.441575] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:38408 | |||
Aug 27 21:37:07 sonshi kernel: [7929323.612810] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:65443 | |||
Aug 27 21:37:08 sonshi kernel: [7929324.270579] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:34254 | |||
Aug 27 21:37:08 sonshi kernel: [7929324.327967] UDP: short packet: From 202.98.192.196:53 4079/1480 to 93.158.216.137:59785 | |||
Aug 27 21:37:08 sonshi kernel: [7929324.536781] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:43231 | |||
Aug 27 21:37:09 sonshi kernel: [7929325.127675] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:49581 | |||
Aug 27 21:37:09 sonshi kernel: [7929325.144620] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:49581 | |||
Aug 27 21:37:12 sonshi kernel: [7929328.649481] net_ratelimit: 4 callbacks suppressed | |||
Aug 27 21:37:12 sonshi kernel: [7929328.649502] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:9876 | |||
Aug 27 21:37:12 sonshi kernel: [7929328.936680] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:61962 | |||
Aug 27 21:37:13 sonshi kernel: [7929329.378998] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:36772 | |||
Aug 27 21:37:13 sonshi kernel: [7929329.396591] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:36772 | |||
Aug 27 21:37:13 sonshi kernel: [7929329.408608] UDP: short packet: From 60.190.135.186:53 3772/1480 to 93.158.216.137:36772 | |||
Aug 27 21:37:13 sonshi kernel: [7929329.663297] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:32918 | |||
Aug 27 21:37:13 sonshi kernel: [7929329.744332] UDP: short packet: From 218.206.228.35:53 3773/1480 to 93.158.216.137:58897 | |||
Aug 27 21:37:13 sonshi kernel: [7929329.776572] UDP: short packet: From 218.206.228.35:53 3773/1480 to 93.158.216.137:29628 | |||
Aug 27 21:37:14 sonshi kernel: [7929330.072476] UDP: short packet: From 14.204.33.30:53 3988/1480 to 93.158.216.137:838 | |||
Aug 27 21:37:14 sonshi kernel: [7929330.234864] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:54415 | |||
Aug 27 21:37:19 sonshi kernel: [7929335.764800] net_ratelimit: 21 callbacks suppressed | |||
Aug 27 21:37:19 sonshi kernel: [7929335.764816] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:33268 | |||
Aug 27 21:37:20 sonshi kernel: [7929336.076518] UDP: short packet: From 202.98.192.196:53 4079/1480 to 93.158.216.137:12400 | |||
Aug 27 21:37:20 sonshi kernel: [7929336.169482] UDP: short packet: From 14.204.33.30:53 3988/1480 to 93.158.216.137:36664 | |||
Aug 27 21:37:20 sonshi kernel: [7929336.406984] UDP: short packet: From 202.98.192.196:53 4079/1480 to 93.158.216.137:3640 | |||
Aug 27 21:37:20 sonshi kernel: [7929336.518044] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:33169 | |||
Aug 27 21:37:21 sonshi kernel: [7929337.004335] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:42572 | |||
Aug 27 21:37:21 sonshi kernel: [7929337.119954] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:16753 | |||
Aug 27 21:37:21 sonshi kernel: [7929337.689267] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:47693 | |||
Aug 27 21:37:22 sonshi kernel: [7929338.157246] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:58258 | |||
Aug 27 21:37:22 sonshi kernel: [7929338.494035] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:52805 | |||
Aug 27 21:37:25 sonshi kernel: [7929341.423390] net_ratelimit: 5 callbacks suppressed | |||
Aug 27 21:37:25 sonshi kernel: [7929341.423406] UDP: short packet: From 116.226.25.148:53 4103/1456 to 93.158.216.137:50329 | |||
Aug 27 21:37:25 sonshi kernel: [7929341.561036] UDP: bad checksum. From 75.99.232.222:53 to 93.158.216.137:53727 ulen 1213 | |||
Aug 27 21:37:25 sonshi kernel: [7929341.698924] UDP: short packet: From 202.98.192.196:53 4079/1480 to 93.158.216.137:50674 | |||
Aug 27 21:37:26 sonshi kernel: [7929342.343357] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:43498 | |||
Aug 27 21:37:26 sonshi kernel: [7929342.584479] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:12021 | |||
Aug 27 21:37:26 sonshi kernel: [7929342.704198] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:9561 | |||
Aug 27 21:37:26 sonshi kernel: [7929342.894520] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:51031 | |||
Aug 27 21:37:27 sonshi kernel: [7929343.267720] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:13410 | |||
Aug 27 21:37:27 sonshi kernel: [7929343.784472] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:54126 | |||
Aug 27 21:37:27 sonshi kernel: [7929343.800076] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:21035 | |||
Aug 27 21:37:30 sonshi kernel: [7929346.773250] net_ratelimit: 8 callbacks suppressed | |||
Aug 27 21:37:30 sonshi kernel: [7929346.773266] UDP: short packet: From 180.162.209.46:53 4103/1456 to 93.158.216.137:50734 | |||
Aug 27 21:37:31 sonshi kernel: [7929347.547390] UDP: short packet: From 116.226.25.148:53 4103/1456 to 93.158.216.137:44557 | |||
Aug 27 21:37:31 sonshi kernel: [7929347.964701] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:43737 | |||
Aug 27 21:37:32 sonshi kernel: [7929347.997173] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:40013 | |||
Aug 27 21:37:32 sonshi kernel: [7929348.009892] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:40013 | |||
Aug 27 21:37:32 sonshi kernel: [7929348.341851] UDP: short packet: From 14.204.33.30:53 3988/1480 to 93.158.216.137:32629 | |||
Aug 27 21:37:32 sonshi kernel: [7929348.444942] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:19341 | |||
Aug 27 21:37:32 sonshi kernel: [7929348.699118] UDP: short packet: From 116.226.25.148:53 4103/1456 to 93.158.216.137:51190 | |||
Aug 27 21:37:32 sonshi kernel: [7929348.766941] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:10977 | |||
Aug 27 21:37:32 sonshi kernel: [7929348.791296] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:13845 | |||
Aug 27 21:37:38 sonshi kernel: [7929354.132700] net_ratelimit: 10 callbacks suppressed | |||
Aug 27 21:37:38 sonshi kernel: [7929354.132715] UDP: short packet: From 218.206.228.35:53 3773/1480 to 93.158.216.137:50278 | |||
Aug 27 21:37:38 sonshi kernel: [7929354.588665] UDP: short packet: From 218.206.228.35:53 3773/1480 to 93.158.216.137:51235 | |||
Aug 27 21:37:38 sonshi kernel: [7929354.762189] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:42285 | |||
Aug 27 21:37:39 sonshi kernel: [7929355.276573] UDP: short packet: From 61.188.16.146:53 3790/1480 to 93.158.216.137:58927 | |||
Aug 27 21:37:39 sonshi kernel: [7929355.418600] UDP: short packet: From 61.164.129.123:53 4103/1480 to 93.158.216.137:34449 | |||
Aug 27 21:37:39 sonshi kernel: [7929355.443887] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:13782 | |||
Aug 27 21:37:39 sonshi kernel: [7929355.634607] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:9470 | |||
Aug 27 21:37:39 sonshi kernel: [7929355.644868] UDP: short packet: From 122.5.18.246:53 4079/1480 to 93.158.216.137:9470 | |||
Aug 27 21:37:40 sonshi kernel: [7929355.969977] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:8999 | |||
Aug 27 21:37:40 sonshi kernel: [7929356.061086] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:56496 | |||
Aug 27 21:37:44 sonshi kernel: [7929360.139977] net_ratelimit: 9 callbacks suppressed | |||
Aug 27 21:37:44 sonshi kernel: [7929360.139992] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:36365 | |||
Aug 27 21:37:44 sonshi kernel: [7929360.150699] UDP: short packet: From 61.188.16.102:53 3790/1480 to 93.158.216.137:36365 | |||
Aug 27 21:37:44 sonshi kernel: [7929360.715057] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:32180 | |||
Aug 27 21:37:44 sonshi kernel: [7929360.865477] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:3040 | |||
Aug 27 21:37:44 sonshi kernel: [7929360.874747] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:3040 | |||
Aug 27 21:37:45 sonshi kernel: [7929361.495496] UDP: short packet: From 122.226.18.50:53 4079/1280 to 93.158.216.137:17065 | |||
Aug 27 21:37:46 sonshi kernel: [7929362.047245] UDP: short packet: From 116.226.29.53:53 4103/1456 to 93.158.216.137:23256 | |||
Aug 27 21:37:46 sonshi kernel: [7929362.068407] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:44696 | |||
Aug 27 21:37:46 sonshi kernel: [7929362.068510] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:44696 | |||
Aug 27 21:37:46 sonshi kernel: [7929362.513720] UDP: short packet: From 117.35.159.131:53 4069/1480 to 93.158.216.137:3079 | |||
</pre> | |||
現状はDDoS対策をCFに丸投げして対処できているナリ | |||
サヒケーで一部の専ブラに問題が再発してしまったナリが、当面の間CFを抜くことは難しいのでもうしわけありません | |||
==【重要】クッキー☆Wiki及び掲示板に関して== | ==【重要】クッキー☆Wiki及び掲示板に関して== |