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What if I create a PDF with this content... https://news.ycombinator.com/item?id=1 https://news.ycombinator.com/item?id=1 https://news.ycombinator.com/item?id

by ahbyb 7y ago

What if I create a PDF with this content... https://news.ycombinator.com/item?id=1 https://news.ycombinator.com/item?id=1 https://news.ycombinator.com/item?id=2 https://news.ycombinator.com/item?id=2 https://news.ycombinator.com/item?id=3 https://news.ycombinator.com/item?id=3 and so on, until 10,000,000? Perhaps Facebook starts opening every link using 10,000 parallel threads. Can you really replicate that from your connection at home? Perhaps even the sysadmin of your victim site has whitelisted all Facebook IP addresses so their crawlers get a free ride.

gojomo 7y ago
There's a fair chance the service which generates these outbound requests throttles itself, both with respect to how many requests it makes against any one domain/IP, or how many errors it will provoke per time period, or before human review.
- zeptoon 7y ago
  Maybe, maybe not
zeptoon 7y ago
It's this kind of thinking that unearths the bugs
GhostVII 7y ago
I would imagine it queries sequentially so it wouldn't have too many parallel threads. Not much reason to parallelize.