projecteuler.net not reachable via IPv6?
Posted: Wed Dec 01, 2021 8:49 pm
Hi all,
since the recent server move, it seems like projecteuler.net claims to have an IPv6 address (2a07:7800::128), and this address is also distributed via DNS.
However, the website is not reachable under that address from my machines. At least on my end, executing
yields a timeout, while running the same without the "-6" works.
This does not impact normal browsing (as browsers/resolvers then seem to fall back on IPv4), but some programs do not use such a fallback. More specifically, running
in Ruby fails after a timeout, as the resolver doesn't use the IPv4 fall back.
Can anyone reproduce the IPv6 problem via curl or ruby?
since the recent server move, it seems like projecteuler.net claims to have an IPv6 address (2a07:7800::128), and this address is also distributed via DNS.
However, the website is not reachable under that address from my machines. At least on my end, executing
Code: Select all
curl -v -6 https://projecteuler.net --connect-timeout 10This does not impact normal browsing (as browsers/resolvers then seem to fall back on IPv4), but some programs do not use such a fallback. More specifically, running
Code: Select all
ruby -e 'require "open-uri"; URI.open("https://projecteuler.net")'Can anyone reproduce the IPv6 problem via curl or ruby?