[CentOS-mirror] Chinese addresses requesting excessive iso's?

Wed Apr 27 18:27:32 UTC 2022
Stephen Smoogen <ssmoogen at redhat.com>

On Wed, 27 Apr 2022 at 14:16, Russell Jones <arjones85 at gmail.com> wrote:

> So, for whatever reason my mirror seems to be getting targeted by China:
> [root at repos ~]# tail -f access.log | grep 403
> - - [27/Apr/2022:13:10:52 -0500] "GET
> /centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-Everything-2009.iso HTTP/1.1"
> 403 153 "-" "curl/7.29.0"


> I geoblocked the country about a week ago, but the requests haven't
> stopped. It was at the level that it was maxing out my 1gbit/sec link until
> I did something.
> Anyone else seeing anything similar?
I have seen this going for about 10 years with different mirrors. The
connections are one of three things:
1. Automated downloaders getting blocked by Great-Firewall configurations
getting to a certain point
2. Malware installed on a lot of systems being commanded to download the
software and desist. This is usually done to cause bandwidth issues all
through the stack. They are either getting stopped by firewalls or just
stopping the connections themselves as part of the badness.

>From mirror managing Fedora, number 2 seems to be more likely as a lot of
the IP addresses doing this never show up on asking mirrormanager for
downloads. Instead they seem to have gotten a list of mirrors from some
third party and are being commanded to do the infinite downloads. I don't
know if this is similar with what is going on now.

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Stephen Smoogen, Red Hat Automotive
Let us be kind to one another, for most of us are fighting a hard battle.
-- Ian MacClaren
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