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 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.