DNS

Bind9 is unable to resolve hostnames in my domain [ns.ehb.local] (Host is unreachable).
Forwarding to other DNS Servers however works fine.

My /etc/bind/named.conf.local:

zone "ehb.local" {
master;
file "/etc/bind/db.ehb.local";
};

zone "234.168.192.in-addr.arpa" {
master;
file "/etc/bind/db.192";
};

My /etc/bind/db.ehb.local:

;
; BIND data file for ehb.local
;
$TLL	604800
@	IN	SAO	ehb.local.	root.ehb.local.	(
				2	; Serial
			   604800	; Refresh
			    86400	; Retry
			  2419200	; Expire
			   604800 )	; Negative Cache TTL
	IN	A	192.168.234.10
;
@	IN	NS	ns.ehb.local.
@	IN	A	192.168.234.10
@	IN	AAAA	::1
ns	IN	A	192.168.234.10


My /etc/bind/db.192:

;
; BIND reverse data file for local 192.168.234.XXX net
;
$TLL	604800
@	IN	SAO	ehb.local.	root.ehb.local.	(
				2	; Serial
			   604800	; Refresh
			    86400	; Retry
			  2419200	; Expire
			   604800 )	; Negative Cache TTL
;
@	IN	NS	ns.
10	IN	PTR	ns.ehb.local.