IPv6 disabled by default in Networking?

[warg]

Hello,

I just discovered that the IPv6 automatic detection is disabled by default in the Network page. Is there a reason for that? My server has IPv4 and IPv6 and I would have expected both to be enabled. The docs don't provide information on why it's disabled. I found no forum thread about this as well.

Best Regards,

[ccfu]

Presumably because not everyone has IPv6 set up for their domains in DNS, even if a server has it enabled. If it were enabled by default and people try to set up an app with a domain with no AAAA record it will fail.

[girish]

This is in the TODO list to detect and enable it by default. But no immediate plans since it's low priority. Some day, I also want pure IPv6 only servers!

Sorry for the not so satisfactory answer But the answer is just that it's a shortage of time on our side to make it enabled by default.

[ccfu]

@girish But then you would need to ensure that you can enable or disable it per app because at the moment the app will not start if cloudron has IPv6 enabled but the domain or subdomain has no AAAA record (in all nameservers).

[girish]

@ccfu the IPv6 detection will be based on whether the server has IPv6 address or not . If it has, then we can enable IPv6 support and also add the AAAA records to the DNS.

Detecting if a server has IPv6 is quite easy - just a curl https://ipv6.api.cloudron.io/api/v1/helper/public_ip . The complication comes when the server is migrated to say an IPv4 server. In that case, I guess we should disable IPv6 and also remove any existing AAAA records. Currently, we lack a way to show this information to the user during a restore. This is why we haven't enabled auto detection yet. There's a bunch of corner cases.

[ccfu]

@girish said in IPv6 disabled by default in Networking?:

the IPv6 detection will be based on whether the server has IPv6 address or not . If it has, then we can enable IPv6 support and also add the AAAA records to the DNS.

But only if DNS is being maintained by the Cloudron server or Wildcard entry is set up on the nameservers.

[girish]

@ccfu right... if DNS is not mainained by Cloudron, we have to show some message/alert the user. This requires some work, this is why this feature is not done yet It seems like quite some work for very little value.