Не работает DNS

Host компьютеров в сети выдает:

Host man2 not found: 3(NXDOMAIN)

ping: unknown host man2

cl-info -z dns

Information about the slave DNS zones in /etc/bind/named.conf
+------------------------+-----------------------+
| DNS zone               | IP master DNS servers |
+------------------------+-----------------------+
| smk                    |                       |
| 1.168.192.in-addr.arpa |                       |
+------------------------+-----------------------+
(2 rows)

Вместе с тем:

cl-info -Z smk dns
 * The program does not support information for smk DNS zone

Подскажите, что делать?!