How to use the IPv4-to-IPv6-Proxy¶

• Table of contents
• How to use the IPv4-to-IPv6-Proxy
  • Status
  • Introduction
  • How to use it (as a customer)
  • Technical details / how to maintain it
  • Troubleshooting

Status¶

This document is IN PRODUCTION.

Introduction¶

To enable IPv6 only VMs to be accessible from the IPv4 Internet, we have an IPv4-to-IPv6 proxy.

How to use it (as a customer)¶

• Configure / setup your website to be reachable by IPv6
• Ensure that your domain name has an AAAA entry pointing to your website
• Inform the ungleich team via support at ungleich.ch about your domain
• Our team will setup the proxy to whitelist your domain
• Setup an A entry for your domain(s) pointing to 185.203.112.54

Technical details / how to maintain it¶

• It's configured by cdist, type __ungleich_haproxy
• To add a domain, edit manifest/ungleich
  • Find ipv6-proxy.ungleich.ch
  • Verify that the domain has an AAAA entry
  • Add the domain using the "--v4proxy DOMAIN" parameter
  • Commit in git, push
• Run cdist: cdist config ipv6-proxy.ungleich.ch

Troubleshooting¶

If the customer domain does not exist (anymore), haproxy will refuse to reload. In this case the customer domain has to be removed and the customer to be notified.