You have a trailing dot in the zone definition. It makes a difference.
Personally, I wouldn't use forwarding at all, and I'd build this for
scalability. Define a master zone for, say, 168.136.dnssd.presto, and then
delegate from that to whatever address ranges you deploy Presto to in the
future (43.168.136.dnssd.presto today, maybe 99.168.136.dnssd.presto later).
When I say "define a master zone", of course, I mean do that on one of the
servers. The other one would then slave it.
Note that if you have global forwarding enabled, and if you're using any zone
type other than "forward" (e.g. master, slave, stub), you'll need to disable
the global forwarding for the part of the namespace you want to resolve
internally, by putting "forwarders { };" in the relevant zone definition.
{RANT ON}
This Presto thing is a terrible product, from a DNS perspective, if (as appears
from the admin guide at
https://download.collobos.com/en/presto2/files/administrator_guide.pdf) there
is no option to set the domain name for resolution of resource names. It seems
dnssd.presto is hard-coded into the product, yet generally speaking, it's a bad
practice to make TLDs up out of thin air and use them an IP network. A TLD that
is "private" today (as .presto happens to be) can become "public" tomorrow, if
ICANN decides to award a TLD assignment to, say, the Presto which makes kitchen
appliances and gadgets (https://www.gopresto.com/), which is certainly *much*
more well-known than the networking company, and thus has a stronger claim to
the TLD. Suddenly, then, your devices could be confused between the internal
and external versions of the TLD. This is a mistake *many* administrators
regretted later.
It is better to use a subdomain of one's *unique*, publically-registered domain
name. But, apparently, this product doesn't allow that.
{RANT OFF}
- Kevin
-----Original Message-----
From: bind-users [mailto:[email protected]] On Behalf Of Michael
W. Fleming
Sent: Tuesday, June 27, 2017 12:14 PM
To: [email protected]
Subject: Problem w/ Forwarding Zone in Caching-Only Config
We're setting up a wireless printing service that uses
Zeroconf/bonjour/rendevouz dns entries. The product, Presto, has it's own dns
server for a private, on-campus only zone (presto.). We're running bind 9.9
with a master server, three slaves and two caching-only servers (anycasted to
136.168.255.2). We have the following in named.conf (as per the vendor) on the
caching-only servers.
zone "presto." {
type forward;
forward only;
forwarders { 136.168.2.66; };
};
I manually added some required dns entries in our zone (as per vendor),
e.g.:
dig +short ptr b._dns-sd._udp.0.43.168.136.in-addr.arpa
0.43.168.136.dnssd.presto.
However, when I query the presto address, the query is sent to the roots, not
the presto server:
$ dig ptr 0.43.168.136.dnssd.presto.
; <<>> DiG 9.11.1 <<>> ptr 0.43.168.136.dnssd.presto.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 46445 ;; flags: qr aa rd
ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;0.43.168.136.dnssd.presto. IN PTR
;; AUTHORITY SECTION:
. 86400 IN SOA a.root-servers.net.
nstld.verisign-grs.com. 2017062002
1800 900 604800 86400
;; Query time: 2 msec
;; SERVER: 136.168.255.2#53(136.168.255.2) ;; WHEN: Tue Jun 20 10:04:25 PDT
2017 ;; MSG SIZE rcvd: 129
I am by no means a bind wizard. Any help would be appreciated.
Many thanks.
--
Michael Fleming, IT Networking, Datacenter & Telecom, CSU, Bakersfield
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