[Pdns-users] ZoneToCache for root zone not working

[Jahanzeb Arshad]

Thanks for the clarity. 

I tried to resolve some top level domains NS and still getting high
latency.


$ dig ae ns @localhost

;; omitting

;; ANSWER SECTION:
ae. 3600 IN NS ns2.aedns.ae.
ae. 3600 IN NS ns4.apnic.net.
ae. 3600 IN NS nsext-pch.aedns.ae.
ae. 3600 IN NS ns1.aedns.ae.

;; Query time: 152 msec


$ dig art ns @localhost

;; omitting

;; ANSWER SECTION:
art. 164969 IN NS b.nic.art.
art. 164969 IN NS c.nic.art.
art. 164969 IN NS a.nic.art.
art. 164969 IN NS d.nic.art.

;; Query time: 244 msec


-- 
Regards
Jahanzeb Arshad
VP Operations

On Tue, 2021-12-21 at 07:49 +0100, Otto Moerbeek wrote:
> 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
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