BIND9 9.21.21 DoT Forwarding Fails with Quad9 (9.9.9.9 etc) ; Cloudflare/Google/own unbound work OK

[pgnd]

> In your first mail you said:
> 
>  > ...but, when the VM is unreachable, Bind9's fallback to direct recursion has a very noticeable delay. in-browser reponse goes from un-noticeable to ~ 3 seconds.
> 
> So this is what I focussed on. I haven't considered Google, Cloudflare or Quad9 at all, just your Unbound forwarder and a potential way to avoid waiting so long if it fails to respond.

ah.  different issues / different posts:

this one:
	Subject: Re: BIND9 9.21.21 DoT Forwarding Fails with Quad9 (9.9.9.9 etc) ; Cloudflare/Google/own unbound work OK

the other one:
	Subject: Re: DoT forwarder: controlling timeout before fallback to recursion ?

i'll need re-stare at your suggestions in the _other_ message's context.
not clear 2 me -- yet -- if that leads to a tweakable knob to adjust the fallback timeout.

thx o/