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I believe even Hacker News is inaccessible via ipv6. https://news.ycombinator.com/item?id=19833362 https://news.ycombinator.com/item?id=19833362 I noticed thi

• pera 7y ago
  $ ping -6 news.ycombinator.com ping: news.ycombinator.com: Name or service not known There is no AAAA record :/
• icebraining 7y ago
  Accessing an IPv4-only website from IPv6 is not a major problem. A NAT64 gateway to access such legacy services works fine. IPv4-only clients is another issue.
  • p1mrx 7y ago
    Running an IPv4-only website becomes a problem as ISPs migrate their IPv4 traffic to NAT44/NAT64, and you can no longer tell users apart for abuse detection purposes.
    • icebraining 7y ago
      If you run a dual-stack site, the attackers can just use your IPv4 (if their ISP gives them a private one) or the equivalent NATed IPv6 (forcing the use of NAT64) instead of your real IPv6.
      • p1mrx 7y ago
        Sure, but you can block the attacking IPv4 addresses without affecting normal IPv6 users. This is why it's a good idea for ISPs to deploy IPv6 alongside NAT, and for browsers to prefer IPv6 by default.
    • blotter_paper 7y ago
      > you can no longer tell users apart for abuse detection purposes s/abuse detection/tracking As a user, this sounds like a feature -- but really, there are a ton of other metrics to track most users by (assuming we're talking about abuse done via the actual website interface rather than just flooding ports with packets from a specific IP).
      • fakename11 7y ago
        I doubt this website would even be up if they had no abuse detection.
• tambre 7y ago
  If you want to use HN over IPv6 then add the following to your hosts file: news.ycombinator.com 2606:4700::6810:686e