[fpc-devel] wiki slow

[Marc Weustink]

On 15/03/2025 14:07, Jonas Maebe via fpc-devel wrote:
> On 23/02/2025 14:22, Jonas Maebe via fpc-devel wrote:
>> On 23/02/2025 13:56, wkitty42--- via fpc-devel wrote:
>>> FWIW: instead of rejecting, i would drop... that way their networking 
>>> stack has to wait on timeouts and adds a delay load to their stuff... 
>>> dropping also makes you "invisible" to them... with your rejects, 
>>> your (icmp) responses tell them the system still exists, so they keep 
>>> hammering...
>>
>> I know, but this rejecting is not causing issues for now, and I prefer 
>> to behave as a good net citizen as long as possible.
> 
> Maybe I should reconsider for Alibaba Cloud in particular: they actually 
> posted a howto on building a web scraper using their cloud 
> infrastructure in December 2024: https://www.alibabacloud.com/blog/ 
> building-a-custom-chatbot-with-web-scraping-and-alibaba-cloud-model- 
> studio_601863
> 
> You just pass it the address of a website, and they scrape it for you. 
> Since the scraping happens using faked browser agents and without any 
> regard for robots.txt, it's clearly abusive.
> 
> I would recommend anyone administrating a web server to permanently 
> blacklist the following ranges:
> 
> 47.235.0.0 - 47.246.255.255
> 47.250.0.0 - 47.254.255.255
> 47.74.0.0 - 47.87.255.255 (*)
> 43.135.128.0 - 43.135.191.255
> 43.153.0.0 - 43.153.127.255
> 47.88.0.0 - 47.91.255.255

The Lazarus top 10 of last week:

count  net
45013  185.191.171.0/27
41427  85.208.96.192/27
23870  47.82.10.0/23
19461  51.8.102.0/24
  7309  114.250.48.0/20
  6215  84.54.64.0/20
  5487  47.79.0.0/21
  5369  172.203.190.128/28
  5067  20.42.10.176/28
  4904  39.156.168.0/21