Merge branch 'master' of code.ungleich.ch:ungleich-public/ungleich-staticcms

content/u/blog/the-v6-pattern-for-proxied-hosts/contents.lr

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+title: The v6 pattern for IPv6 only hosts
+---
+pub_date: 2021-02-24
+---
+author: ungleich
+---
+twitter_handle: ungleich
+---
+_hidden: no
+---
+_discoverable: yes
+---
+abstract:
+How to configure proxied IPv6 only hosts reliably.
+---
+body:
+
+At ungleich we have a lot of IPv6-only web servers. Many of them are
+are proxied from the IPv4 world, so the domain name points to two
+different machines:
+
+* the AAAA entry points to the server directly
+* the A entry points to a proxy
+
+This  sometimes makes configuring the right system a bit harder,
+because on dual stack clients, accessing www.example.com brings you to
+either machine. In the [first ungleich tech
+talk](https://www.youtube.com/watch?v=cANwo0IdZYU) we show how this
+looks in detail and how we ensure that we configure the right machine.
+
+This is our first tech talk and we love to [hear your feedback](/u/contact/).