Hi,

On Fri, Apr 18, 2025 at 09:42:57PM +0100, Jonathan Wakely via Gcc wrote:
> On Fri, 18 Apr 2025, 20:14 Siva Sai Manchem via Gcc, <gcc@gcc.gnu.org>
> wrote:
> > We wanted to bring to your attention that one of our customers, who is
> > utilizing Zscaler services, is currently facing difficulties accessing your
> > website. Upon reviewing the issue, we found that the website is being
> > blocked when accessed via Zscaler IPs.
> 
> I will pass this onto the system admins, but the problem is that some of
> your customers have been abusing our services constantly, making it harder
> for GCC developers to access our own services.
> 
> The only solution we've been able to find is to block entire IP ranges.

We are experimenting with https://anubis.techaro.lol/ but it isn't
deployed yet. For now we do indeed just block ip ranges which host
many abusers.

> > To ensure seamless accessibility for our customer, could you please
> > whitelist the IPs associated with our San Francisco IV data center?
> > Below is the list of IPs for your reference:
> >
> > List of IPs:
> > 104.129.192.0/23
> > 170.85.154.0/23
> > 170.85.182.0/23
> > 165.225.246.0/23
> > 136.226.78.0/23
> > 2605:4300:1200::/40
> >
> > Your support in getting these IPs whitelisted would be greatly appreciated.
> > Please let us know if you require any additional information from our side
> > to expedite this process.

None of those ranges are currently blocked.  If you could monitor you
customers not generating abusive traffic they should stay unblocked.

We are currently fighting LLM/AI scraperbots hitting various sites
very hard.

https://lwn.net/Articles/1008897/
https://arstechnica.com/ai/2025/03/devs-say-ai-crawlers-dominate-traffic-forcing-blocks-on-entire-countries/

Cheers,

Mark

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