Hi!
For a couple of hours now, both the Cloudron admin interface and the email services have been unavailable for me, but all apps seems to be running just fine.
Just before this happened, I was trying to add some changes to the DNS for the same domain name as I use for my Cloudron to solve some mail delivery problems.
When I ran
cloudron-support --troubleshoot
and got an error message about Hairpin NAT not working and that the admin domain could not be loaded.
So I went into my registrars DNS configuration and removed the TXT entry I had added for my.<cloudron.domain>, even though I couldn't understand why that would have an impact on the admin interface or email services.
But when I did, both admin interface and email became accessible again. Good. But I still get the Hairpin DNS error and FAIL for loading dashboard admin when troubleshooting from my servers terminal.
Can someone explain what's going on here?
- How could SPF records have an impact on the services?
- And how could they become available again, yet cloudron-support claming there is a problem with Hairpin NAT?