For anyone still monitoring the thread and wondering whether to upgrade; I just upgraded with zero issues (I’m running a vanilla MIAB unmodified Nextcloud instance though).
I never did figure out what happened, so I built a new server with 0.51. The ipv6 issue is gone. Now however I’m having trouble migrating my mail from the old to the new box per instructions given at https://mailinabox.email/maintenance.html#moving-boxes
If you want to post where you are stuck in the process I’d be happy to try to help you out here. Or maybe offer another option. Is the original server still running, or are you working with just the encrypted backup?
Thank you for your support. The older server is still running. I did a final backup, then SCPed the encrypted folder and the secret_key.txt file over. I then ran these commands
$ export PASSPHRASE=$(cat secret_key.txt)
$
$ sudo -E duplicity restore --force file:/home/aztlan/encrypted /home/user-data/
[sudo] password for aztlan:
gpg: WARNING: unsafe ownership on homedir ‘/home/aztlan/.gnupg’
Synchronizing remote metadata to local cache…
GnuPG passphrase for decryption:
I don’t recall setting a GnuPG passphrase. Please advise. Thank you!
This seems to be done automatically by the backup script. The “passphrase” is the key in the text file. (you may search in this area: Why does it seem it isn’t taken into consideration?)
Ideas: Did you indeed copy the files and key into “/home/aztlan/encrypted” on your new box? Are you in that directory when running the commands? (or at least the directory where the key.txt is located when running the first command)
On the guide, there is 3 “///” after “file:”. Is that a mistake in the guide? Did you maybe try it?
Apart from this, I’m unable to think about anything else to try to help you.
That user resolved their issue by migrating to a new VPS. In your case you upgraded to v 0.52 and are just now having this issue? Who is your VPS provider?
Yes, I upgraded to 0.52 yesterday and the issue started happening yesterday after the upgrade. I believe I was on 0.50 before the upgrade. My VPS provider is Linode. I would prefer not to have to migrate to a new VPS since setting up IPv6 and reverse DNS was nontrivial.
In my case, the IPv6 address in /etc/nsd/nsd.conf was incorrect. Changing it to the correct one then running systemctl restart nsd fixed the issue for me. Whether this fix survives MiaB upgrades remains to be seen.