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Techlog · Feb 15, 2025

IPv6 is hard

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Yesterday I read this toot (German) over on mastodon which starts with “IPv6 is hard.” No it’s not. It’s different. I ran across this multiple times: There is an A and an AAAA-record for a FQDN, but the web server is only reachable via IPv4. You can easily test this with curl $ curl -4 https://github.com -o /dev/null % Total % Received % Xferd Average Speed Time Time Time…

Read on /posts/ipv6-is-hard/

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