rDNS for RFC1918 network fails
Mark Andrews
marka at isc.org
Sun Jan 24 21:43:54 UTC 2021
Use the correct zone name.
1.168.192.IN-ADDR.ARPA
You have the full /24 so you don’t need to use RFC2317 techniques.
--
Mark Andrews
> On 25 Jan 2021, at 08:04, Alex <mysqlstudent at gmail.com> wrote:
>
> Hi, I have a fedora32 system with bind-9.11.25 and having a problem
> with setting up a reverse zone for a 192.168.1.0/24 internal network.
>
> It loads okay, but queries fail:
>
> # host 192.168.1.1
> Host 1.1.168.192.in-addr.arpa. not found: 3(NXDOMAIN)
>
> Jan 24 15:56:26 orion bash[1967667]: zone inside.example.com/IN:
> loaded serial 103
> Jan 24 15:56:26 orion bash[1967667]: zone
> 0-24.1.168.192.in-addr.arpa/IN: loaded serial 107
> Jan 24 15:56:26 orion bash[1967667]: zone localhost.localdomain/IN:
> loaded serial 0
> Jan 24 15:56:26 orion bash[1967667]: zone localhost/IN: loaded serial 0
> Jan 24 15:56:26 orion bash[1967667]: zone
> 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN:
> loaded serial 0
> Jan 24 15:56:26 orion bash[1967667]: zone 1.0.0.127.in-addr.arpa/IN:
> loaded serial 0
> Jan 24 15:56:26 orion bash[1967667]: zone 0.in-addr.arpa/IN: loaded serial 0
> Jan 24 15:56:26 orion named[1967669]: starting BIND
> 9.11.25-RedHat-9.11.25-2.fc32 (Extended Support Version) <id:4a7e9aa>
>
> Here is my /etc/named.conf zone info for the forward and reverse:
>
> acl "trusted" {
> { 127/8; };
> { 68.195.111.40/29; };
> { 192.168.1.0/24; };
> };
>
> zone "inside.example.com." {
> type master;
> file "master/inside.example.com.db";
> forwarders {};
> allow-query { trusted; };
> allow-transfer { none; };
> };
>
> zone "0-24.1.168.192.in-addr.arpa." {
> type master;
> file "master/192.168.1.db";
> allow-query { trusted; };
> allow-transfer { none; };
> };
>
> Here is the actual zone file.
> /var/named/chroot/var/named/master/192.168.1.db
>
> $TTL 1H
> $ORIGIN 0-24.1.168.192.in-addr.arpa.
> @ 3600 IN SOA orion.inside.example.com. admin.example.com.
> 107 3H 1H 1W 1H
> @ 3600 IN NS orion.inside.example.com.
> @ 3600 IN A 192.168.1.1
>
> 1 IN PTR orion.inside.example.com.
> 150 IN PTR pixie.inside.example.com.
>
> What could I possibly be doing wrong? When I run dig +trace it doesn't
> appear to look to the local name server, but instead goes to the
> Internet and the top-level name servers.
>
> # dig +trace any 150.1.168.192.in-addr.arpa.
>
> Thanks,
> Alex
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