We're having this too.
ave@owobox:/home/ave $ sudo grep iso /var/log/nginx/access.log | awk '{
print $1 }' | sort -n | uniq -c | sort -nr | grep 27.221.66
29 27.221.66.139
27 27.221.66.136
26 27.221.66.137
26 27.221.66.133
25 27.221.66.134
24 27.221.66.144
23 27.221.66.148
21 27.221.66.143
21 27.221.66.138
21 27.221.66.132
20 27.221.66.141
18 27.221.66.147
17 27.221.66.153
16 27.221.66.151
16 27.221.66.146
16 27.221.66.142
16 27.221.66.131
15 27.221.66.149
13 27.221.66.154
13 27.221.66.152
They all seem to be trying to fetch
"/iso/2020.02.01/archlinux-2020.02.01-x86_64.iso" and
"/iso/2020.03.01/archlinux-2020.03.01-x86_64.iso", which are 404 on our
end. UA for all is "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3".
I personally blocked the /24 (sudo ufw insert 1 deny from 27.221.66.0/24
to any).
The behavior seems like it's not in good faith (the requests have 30s-4m
between them), and while I don't think much will happen, but I'll be
filing an IP abuse notice to china unicom about this
(hqs-ipab...@chinaunicom.cn).
On 7/2/20 3:00 PM, arch-mirrors-requ...@archlinux.org wrote:
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> Today's Topics:
>
> 1. Re: Huge traffic from China (services)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 2 Jul 2020 09:06:05 +0200
> From: services <services+mirr...@eric.ovh>
> To: arch-mirrors@archlinux.org
> Subject: Re: [arch-mirrors] Huge traffic from China
> Message-ID: <7066fda6-b2f2-b1b9-90fd-ef257920e...@eric.ovh>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Ip is on same range for me
>
> and found 4 new ip yesterday on another range (scan 22H CEST) :
> 119.176.61.18
> 119.176.61.22
> 119.176.61.16
> 119.176.61.12
>
>
> On 7/2/2020 8:25 AM, Siyuan Miao wrote:
>> We also received lots requests from 27.221.66.0/24
>> <http://27.221.66.0/24>.
>>
>> aveline@mirror-iad01-a:~# sudo grep iso
>> /var/log/nginx/mirrors.access.log | awk '{ print $1 }' | sort -n |
>> uniq -c | sort -nr
>> ? ? 178 27.221.66.133
>> ? ? 176 27.221.66.144
>> ? ? 163 27.221.66.143
>> ? ? 163 27.221.66.132
>> ? ? 158 27.221.66.138
>> ? ? 155 27.221.66.141
>> ? ? 153 27.221.66.131
>> ? ? 150 27.221.66.149
>> ? ? 144 27.221.66.147
>> ? ? 137 27.221.66.142
>> ? ? 136 27.221.66.136
>> ? ? 136 27.221.49.135
>> ? ? 133 27.221.66.154
>> ? ? 133 27.221.66.134
>> ? ? 131 27.221.66.151
>> ? ? 131 27.221.66.146
>> ? ? 130 27.221.66.137
>> ? ? 124 27.221.66.139
>> ? ? 120 27.221.66.153
>> ? ? 102 27.221.66.148
>> ? ? ?93 27.221.66.152
>>
>> On Thu, Jul 2, 2020 at 2:14 PM mirror-admin <mirror-ad...@labkom.id
>> <mailto:mirror-ad...@labkom.id>> wrote:
>>
>> Hi,
>>
>> we got request from fraction of subnet 27.221.66.0/24
>> <http://27.221.66.0/24>
>>
>> thx
>>
>> On 7/2/2020 12:52, services via arch-mirrors wrote:
>>
>> > Hello,
>> >
>> > Same case here.
>> >
>> > Impact is low here (via one ip only), because a file which don't
>> exist
>> > (old iso) :
>> > arch//iso/2020.03.01/archlinux-2020.03.01-x86_64.iso" failed (2: No
>> > such file or directory)
>> >
>> > Can you share ip on the list for compare and block all ip before
>> ddos ?
>> >
>> > Regards,
>> > Eric.
>> >
>> > On 7/2/2020 5:02 AM, mirror-admin wrote:
>> >> Hello,
>> >>
>> >> Yes, we notice same download pattern from china IP. Not only for
>> >> Archlinux, but for other archive as well.
>> >>
>> >> What we do is try to be nice, we throttling down our upload
>> speed to
>> >> their IP.
>> >>
>> >> Thx
>> >>
>> >> On 7/2/2020 09:49, Johannes Findeisen wrote:
>> >>> Hello,
>> >>>
>> >>> I am driving the mirror arch.unixpeople.org
>> <http://arch.unixpeople.org>. Since some months I
>> >>> encounter a lot of traffic from China which seems to be like a
>> DDoS. I
>> >>> fixed this some month ago by blocking all IP address ranges
>> from China.
>> >>> This stopped the traffic. Yesterday I tried to remove all my
>> firewall
>> >>> rules and to see what happens... Just some hours ago the DDoS
>> startet
>> >>> again so I really had to block China from my mirror again
>> because it
>> >>> would become a fulltime job to monitor my host.
>> >>>
>> >>> While all this happened I tried to figure out what's going on
>> and saw
>> >>> endless downloads of the arch .iso file from many many IP
>> addresses in
>> >>> China. When the download from one IP had finished the download
>> directly
>> >>> started again from exactly the same IP in an endless loop.
>> >>>
>> >>> Does anyone other here encounter such things?
>> >>>
>> >>> Regards
>> >>>
>> >>> Johannes
>>
>
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-Ave
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