Hello there, is it possible to disable IPv4 and to use IPv6 only?
Because my provider is using DSLite, where my exterior IPv4 adress is rather useless and my client applications rather connect to IPv4 where available.

I have a ticket open with Dynu to support IPv6 only. It is apparently a fairly complicated project since it not only involves UI but also DNS server changes etc.

They have provided me with an alternative for now. You can add a subdomain and map it only to an IPv6 address. It is the 'Aliases' section in your account.