37 lines
1.0 KiB
Markdown
37 lines
1.0 KiB
Markdown
title: The v6 pattern for IPv6 only hosts
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pub_date: 2021-02-24
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---
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author: ungleich
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twitter_handle: ungleich
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---
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_hidden: no
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---
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_discoverable: yes
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---
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abstract:
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ungleich tech talk number 1
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---
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body:
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<iframe width="560" height="315"
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src="https://www.youtube.com/embed/cANwo0IdZYU" frameborder="0"
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allow="accelerometer; autoplay; clipboard-write; encrypted-media;
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gyroscope; picture-in-picture" allowfullscreen></iframe>
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At ungleich we have a lot of IPv6-only web servers. Many of them are
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are proxied from the IPv4 world, so the domain name points to two
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different machines:
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* the AAAA entry points to the server directly
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* the A entry points to a proxy
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This sometimes makes configuring the right system a bit harder,
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because on dual stack clients, accessing www.example.com brings you to
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either machine. In the [first ungleich tech
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talk](https://www.youtube.com/watch?v=cANwo0IdZYU) we show how this
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looks in detail and how we ensure that we configure the right machine.
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This is our first tech talk and we love to [hear your feedback](/u/contact/).
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