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DNS4EU: An EU-Funded DNS Service Relies Heavily on Non-EU Providers

2025-06-12

This investigation examines the EU-funded DNS4EU project, aimed at strengthening digital sovereignty and security for EU citizens. Through DNS lookups, Whois queries, and BGP route tracing, the author reveals that DNS4EU's core infrastructure relies heavily on non-EU providers, including Cloudflare and AS60068 based in the UK. This contrasts sharply with the project's goals, raising questions about its security and data sovereignty. The article uses a lighthearted narrative style combined with technical details to highlight the shortcomings of the DNS4EU project.

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IPv6 Isn't Hard, It's Just Different: A GitHub Case Study

2025-02-16

A Mastodon post lamented the difficulty of IPv6 configuration. The author uses GitHub as an example to show that the problem isn't IPv6 itself, but inadequate configuration and monitoring. Many websites, while having IPv6 address records (AAAA), are actually inaccessible via IPv6 because the browser's Happy Eyeballs mechanism prioritizes faster IPv4. In one case, a customer's split VPN tunnel blocked IPv6 connections. In another, traceroute showed that IPv6 routing terminated earlier than IPv4, indicating a possible firewall rule or routing issue. The author concludes: take IPv6 seriously, or don't use it. Lack of IPv6 monitoring and automation makes problems difficult to detect and resolve.