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Martin Hope
DigitalKiwi
Asked: 2020-10-04 22:19:17 +0800 CST
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I am completely new to DNS servers and as an educational tool, I have installed bind9 on a RPi running dietpi - a stripped down version of Debian.

External addresses resolve perfectly but internal ones do not. I have a db.local.lan file set up like this:

$TTL 3D 
$ORIGIN local.lan. 
local.lan. IN SOA dietpi.local.lan. hostmaster.local.lan. ( 
        2020100418 ; serial 
        8H ; refresh 
        4H ; retry 
        4W ; expire 
        1D ; minimum 
    ) 
    local.lan. IN NS dietpi.local.lan. 
    local.lan. IN MX 10 dietpi.local.lan. 
    localhost IN A 127.0.0.1 
    dietpi IN A 192.168.20.254 
    router IN A 192.168.20.1 
    NL1901ACV IN A 192.168.20.1

named.conf.local is like this:

//
// Do any local configuration here
//

zone "local.lan" IN {
            type master;
            file "/etc/bind/db.local.lan";
      };
    zone "20.168.192.in-addr.arpa" {
            type master;
            file "/etc/bind/db.rev.20.168.192.in-addr.arpa";
      };

// Consider adding the 1918 zones here, if they are not used in your
// organization
//include "/etc/bind/zones.rfc1918";

I have a pc set up to use this device as it's dns server. from this pc I can ping google.com, but if I try to ping dietpi or dietpi.local.lan I get a host not found error.

named-checkconf reveals no errors.

named-checkconf -z returns the following - I have no idea what this means!

/etc/bind/db.local.lan:10: unknown RR type 'local.lan.'
/etc/bind/db.local.lan:11: unknown RR type 'local.lan.'
/etc/bind/db.local.lan:12: unknown RR type 'localhost'
/etc/bind/db.local.lan:13: unknown RR type 'dietpi'
/etc/bind/db.local.lan:14: unknown RR type 'router'
/etc/bind/db.local.lan:15: unknown RR type 'NL1901ACV'
zone local.lan/IN: loading from master file /etc/bind/db.local.lan failed: unknown class/type
zone local.lan/IN: not loaded due to errors.
_default/local.lan/IN: unknown class/type
/etc/bind/db.rev.20.168.192.in-addr.arpa:1: no TTL specified; using SOA MINTTL instead
/etc/bind/db.rev.20.168.192.in-addr.arpa:10: TTL set to prior TTL (1)
zone 20.168.192.in-addr.arpa/IN: loaded serial 2020100417
zone localhost/IN: loaded serial 2
zone 127.in-addr.arpa/IN: loaded serial 1
zone 0.in-addr.arpa/IN: loaded serial 1
zone 255.in-addr.arpa/IN: loaded serial 1

Can anyone explain what I am doing wrong?

Thanks in advance. David.

domain-name-system bind