this post was submitted on 27 Apr 2024
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I was reading the reddit thread on Claude AI crawlers effectively DDOSing Linux Mint forums

and I wanted to block all ai crawlers from my selfhosted stuff.

I don't trust crawlers to respect the Robots.txt but you can get one here:

Since I use Caddy as a Server, I generated a directive that blocks them based on their useragent. The content of the regex basically comes from darkvisitors.

Sidenote - there is a module for blocking crawlers as well, but it seemed overkill for me

For anybody who is interested, here is the block_ai_crawlers.conf I wrote.

(blockAiCrawlers) {
  @blockAiCrawlers {
    header_regexp User-Agent "(?i)(Bytespider|CCBot|Diffbot|FacebookBot|Google-Extended|GPTBot|omgili|anthropic-ai|Claude-Web|ClaudeBot|cohere-ai)"
  handle @blockAiCrawlers {

# Usage:
# 1. Place this file next to your Caddyfile
# 2. Edit your Caddyfile as in the example below
# ```
# import block_ai_crawlers.conf
# {
#   import blockAiCrawlers
#   reverse_proxy * localhost:3000
# }
# ```
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[–] [email protected] 64 points 1 month ago (7 children)
[–] [email protected] 20 points 1 month ago (1 children)

I just want you to know that was an amazing read, was actually thinking "It gets worse? Oh it does. Oh, IT GETS EVEN WORSE?"

[–] [email protected] 4 points 1 month ago

lmao that means a lot, thanks <3

[–] [email protected] 10 points 1 month ago

The nobots module I've linked bombs them

[–] [email protected] 9 points 1 month ago

Suggestion at the end:

  <a class="boom" href="https://boom">hehe</a>

Wouldn't it destroy GoogleBot (and other search engine) those making your site delisted from Search?

[–] [email protected] 8 points 1 month ago* (last edited 1 month ago) (1 children)

In dark mode, the anchor tags are difficult to read. They're dark blue on a dark background. Perhaps consider something with a much higher contrast?

A picture of a website with a dark purple background and dark blue links.

Apart from that, nice idea - I'm going to deploy the zipbomb today!

[–] [email protected] 5 points 1 month ago

nice catch, thanks (i use light mode most of the time)

[–] [email protected] 7 points 1 month ago

This is one of the best things I've ever read.

I'd love to see a robots.txt do a couple safe listings, then a zip bomb, then a safe listing. It would be fun to see how many log entries from an IP look like get a, get b, get zip bomb.... no more requests.

[–] [email protected] 5 points 1 month ago (1 children)

I really like your site's color scheme, fonts, and overall aesthetics. Very nice!

[–] [email protected] 2 points 1 month ago

I agree, it's readable and very cute!

[–] [email protected] 4 points 1 month ago

That’s devilishly and deliciously devious.

[–] [email protected] 26 points 1 month ago (2 children)
[–] [email protected] 3 points 1 month ago

From your recommendation, I found a related project pandoras_pot that I am able to run in a Docker container, and seems to run more efficiently on my Pi home server. I now use it in my Caddyfile to redirect a number of fake subdomains and paths that are likely to be found by a malicious bot (of course all are excluded in my robots.txt for bots that actually respect it). Thanks for the recommendation!

[–] [email protected] 2 points 1 month ago

Ooh, didn't know about that one... thanks

[–] [email protected] 19 points 1 month ago (3 children)

We should do more than block them, they need to be teergrubed.

[–] [email protected] 12 points 1 month ago* (last edited 1 month ago)

Thats an easy modification. Just redirect or reverse proxy to the tarpit instead of abort .

I was even thinking about an infinitely linked data-poisoned html document, but there seemed to be no ready made project that can generate one at the moment. (No published data-poisoning techniques for plain text at all afaik. But there is one for images.)

Ultimately I decided to just abort the connection as I don't want my servers to waste traffic or CPU cycles.

[–] [email protected] 4 points 1 month ago

Such a cool person making the video available for download

[–] [email protected] 1 points 1 month ago

Your link has no article, and Video inside Flash file (swf) that itn't opening in 2024.

And I don't want to install Flash on my machine...

[–] [email protected] 4 points 1 month ago

Huh, looks like the post in r/linux got removed for not being relevant.
What a joke.