[arch-mirrors] Huge traffic from China

[Siyuan Miao]

We also received lots requests from 27.221.66.0/24.

aveline at 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-admin at labkom.id> wrote:

> Hi,
>
> we got request from fraction of subnet 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. 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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