On 19/04/2019 09:48, abubin wrote:
Is it possible to use recursor to forward all queries to pdns
authoritative server and if that query fails, it will forward all to
public DNS such as 8.8.8.8?
I don't think so. (In any case, define what you mean by "failure" -
REFUSED? SERVFAIL? NXDOMAIN? Something else?)
You might be able to do something funky like that with dnsdist, but I
prefer DNS to work deterministically.
For example, in my pdns, I have create a domain called mydomain.com
<http://mydomain.com> and yourdomain.moc.
So instead of creating:
forward-zones=mydomain=127.0.0.1:5300 <http://127.0.0.1:5300>
forward-zones+=yourdomain.moc=127.0.0.1:5300 <http://127.0.0.1:5300>
forward-zones-recurse=.=8.8.8.8
I would like to create:
forward-zones-recurse=.=127.0.0.1:5300 <http://127.0.0.1:5300>
forward-zones-recurse+=.=8.8.8.8
However, tried second method and it does not work. Please advise.
You could try using forward-zones-file to list all your domains which
need to be forwarded:
mydomain.com=127.0.0.1:5300
yourdomain.moc=127.0.0.1:5300
+.=8.8.8.8
I am not sure about the last line, as I've never used pdns-recursor as a
dumb forwarding cache. I prefer to let it do its own recursion and not
trust a third-party cache.
Also see the note about negative trust anchors at
https://doc.powerdns.com/recursor/settings.html#forward-zones
_______________________________________________
Pdns-users mailing list
Pdns-users@mailman.powerdns.com
https://mailman.powerdns.com/mailman/listinfo/pdns-users
