[Pdns-users] ZoneToCache for root zone not working

[Otto Moerbeek]

On Tue, Dec 21, 2021 at 10:28:53AM +0500, Jahanzeb Arshad via Pdns-users wrote:

> Greeting,
> 
> I am having trouble in getting zonetocache working for the root zone. I
> am using PowerDNS Recursor 4.6.0.
> 
> I have following in my /etc/powerdns/recursor.lua configuration:
> 
> dofile("/usr/share/pdns-recursor/lua-config/rootkeys.lua")
> zoneToCache(".", "url", "https://www.internic.net/domain/root.zone", {
> refreshPeriod = 0 })
> 
> 
> When I start the server I get the following message in the logs:
> 
> Dec 21 09:17:13 server.nayatel.com pdns-recursor[19209]: msg="Loaded
> zone into cache" subsystem="ztc" level=0 ts="1640060233.959"
> refresh="0" zone="."
> 
> 
> But when I do dig for the records in the root.zone I get high Query
> time. On subsequent queries I get 0 msec time which means it was cached
> after I did query for the record.
> 
> $ dig b.nic.aaa
> 
> ;; omitting output
> 
> ;; ANSWER SECTION:
> b.nic.aaa. 86400 IN A 37.209.194.9
> 
> ;; Query time: 512 msec
> 
> 
> -- 
> Regards
> Jahanzeb Arshad

The root zone has no autoritative data for b.nic.aaa, only
non-authoritative data. Digging for b.nic.aaa asks for authoritiative
data.

Non-autoritative data *will* be used to get the addresses of
namservers of delegated zones.

Try asking your server for NS aaa. This query only uses root-zone
data. You should get an immediate response, including additional
data.

	-Otto