Full support for IPv6 only servers

[stefanpejcic]

OpenPanel version(s) affected

0.3.8

What OS are you using?

Ubuntu

Description

Currently OpenPanel install script requires ipv4 in order to configure nginx and check license for Enterprise version.

But after installation, when adding domains we check if ipv4 is missing and use ipv6 for new domains. https://github.com/stefanpejcic/openpanel-docker-cli/commit/e5f77bbb96efb8be8c1ac5bb6876d4f4be920a8a

we should cover ipv6 only servers and edit install script to work without ipv4.

later:

• install script to allow isntall on ipv6 only
• ip.openpanel.com to extend check to ipv6 also
• whmcs licensing to be edited and tested with ipv6 only
• in user ui display ipv6 instead of ipv4
• when changing ip in commands use ipv6
• on openadmin users display ipv6 instead
• handle on migration/cp import to edit ipv6 as well when importing domains (if domain was on server with ipv6 and on new its ipv4 only)
• recreate zone command to use ipv6 also
• opencli user-ip to also use ipv6 and optional flag if both v4 and v6 are present to specify one or both

How to reproduce

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Possible Solution

No response

Additional Context

No response