i'm experiencing the /etc/resolv.conf and hostname being reset upon reboot. i did see the info about chattr +i at: https://www.virtualmin.com/documentation/dns/faq
i'm in contact with the vps provider. they tried some configuration modification on their end but after that, i could ssh in and couldn't access parts of the system.
mba:~ om$ ssh email@example.com -p12345
ssh: connect to host seva108.com port 12345: Connection refused
http://seva108.com/roundcube --> connection refused
they thought it was because i had changed the port number.
in any case, they are provisioning a new vps so that i can at least start from ground zero again.
will the chattr +i resolve both the /etc/resolv.conf reset and the hostname reset (it resets back to a non FQDN)?
i don't like the idea of slower dns lookup by unchecking "check resolv.conf for this system" i imagine that the chattr +i maintain normal dns lookup. could you confirm that as true?