Hello,
my OPNsense is configured as a DNS upstream server and the domain "home.arpa" was added in General System Settings.
I have an issue where the domain is applied external requests.
When DNS requests are answered by Unbound, the "home.arpa" domain is added as a suffix.
Example:
cloud-jobs.linkplay.com
is changed to
cloud-jobs.linkplay.com.home.arpa
That happens not with all, but with many domains and results in a SERVFAIL error.
Unbound is set in transparent mode, to resolve local requests (for DHCP static leases) and external requests
Could someone tell me how this can be fixed?
Are you sure it is not the resolver library on the client doing that? That's how it's supposed to work.
It seems like that indeed, since only a few specific clients are behaving like this.
Doesn't seem to be a problem at all, since I discovered no issues so far on my clients.