Thanks for the prompt reply. Exactly what I needed.
Thanks, sean On Fri, Nov 23, 2018 at 11:02 AM Wouter Wijngaards via Unbound-users <[email protected]> wrote: > > Hi Sean, > > On 23/11/2018 16:56, Sean Darcy via Unbound-users wrote: > > I'm running a voip application, asterisk, that dies if it can't > > resolve the addresses for its SIP registrations. Importantly there are > > other connections, PSTN, that work even if the internet connection is > > down. Also, I want the app to stay alive so that it can reconnect to > > the SIP servers once the internet comes back up. For whatever reason, > > asterisk itself will not have a fix for this. > > > > I have unbound working on the machine. I'd like to have unbound serve > > an address from its cache even if it's beyond the ttl IF it can't > > refresh the address. In other words, just serve the stale address > > until it can be refreshed. > > > > Any way to do this ? > > > serve-expired: yes in unbound.conf serves stale data. > > It is good to also enable prefetch: yes. Then unbound tries to refresh > data that is about to expire, whilst serving the existing data. > > You can fine-tune it with the serve-expired-ttl and > serve-expired-ttl-reset options if you want. But you can just leave > those at the defaults. > > > Best regards, Wouter > > > > > > sean
