Проблема с bind9-9.3.1

Собственно проблема:
Несколько дней работает нормально, затем при попытке отрезолвить имя в
другой машины nslookup вываливает сообщение
"*** Can't find server name for address 192.168.48.46: Server failed
Default Server: DNS1
Address: 192.168.48.41"
После нескольких перезапусков начинает работать нормально....
Подскажите, где это можно исправить?
В лог пишет
Jul 3 15:04:57 nix named[1456]: command channel listening on 127.0.0.1#953
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:44:
gc._msdcs.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:45:
gc._msdcs.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:46:
gc._msdcs.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:47:
gc._msdcs.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:48:
gc._msdcs.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:49:
gc._msdcs.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: /etc/namedb/dnepr.org.hosts:158:
tobo4_2.dnepr.org: bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: running
Jul 3 15:04:57 nix named[1456]: zone dnepr.org/IN: expired
Jul 3 15:04:57 nix named[1456]: zone 48.168.192.in-addr.arpa/IN: expired
Jul 3 15:04:57 nix named[1456]: zone dnepr.org/IN:
gc._msdcs.dnepr.org/A: bad owner name (check-names)
Jul 3 15:04:57 nix last message repeated 6 times
Jul 3 15:04:57 nix named[1456]: zone dnepr.org/IN: tobo4_2.dnepr.org/A:
bad owner name (check-names)
Jul 3 15:04:57 nix named[1456]: dumping master file:
/etc/namedb/tmp-sI26GiZHHH: open: permission denied
Jul 3 15:04:57 nix named[1456]: transfer of 'dnepr.org/IN' from
192.168.48.3#53: failed while receiving responses: permission denied
Jul 3 15:04:58 nix named[1456]: dumping master file:
/etc/namedb/tmp-Hb7e8FVLEw: open: permission denied
Jul 3 15:04:58 nix named[1456]: transfer of
'48.168.192.in-addr.arpa/IN' from 192.168.48.3#53: failed while
receiving responses: permission denied
Jul 3 15:05:47 nix named[1456]: zone dnepr.org/IN:
gc._msdcs.dnepr.org/A: bad owner name (check-names)
Jul 3 15:05:47 nix last message repeated 6 times
Jul 3 15:05:47 nix named[1456]: zone dnepr.org/IN: tobo4_2.dnepr.org/A:
bad owner name (check-names)
Jul 3 15:05:47 nix named[1456]: dumping master file:
/etc/namedb/tmp-Vx6T8aok3F: open: permission denied
Jul 3 15:05:47 nix named[1456]: transfer of 'dnepr.org/IN' from
192.168.48.3#53: failed while receiving responses: permission denied
Jul 3 15:05:53 nix named[1456]: dumping master file:
/etc/namedb/tmp-9oZH3KyHoi: open: permission denied
Jul 3 15:05:53 nix named[1456]: transfer of
'48.168.192.in-addr.arpa/IN' from 192.168.48.3#53: failed while
receiving responses: permission denied