اچرانشدن سرویس named

سلام رو یکی از سرورها سرویس named stop شده و بالا نمی یاد
service named start
Redirecting to /bin/systemctl start named.service
Job for named.service failed because the control process exited with error code. See "systemctl status named.service" and "journalctl -xe" for details.
کسی می تونه کمکی کنه

احمد جان status بگیر ببین چی میگه

sudo systemctl status named.service

کد:

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systemctl status named.service
● named.service - Berkeley Internet Name Domain (DNS)
  Loaded: loaded (/etc/systemd/system/named.service; enabled; vendor preset: disabled)
  Active: failed (Result: exit-code) since Tue 2017-07-25 04:24:06 EDT; 51s ago
  Process: 3170 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -z /etc/named.conf; else echo "Checking of zone files is disabled"; fi (code=exited, status=1/FAILURE)

Jul 25 04:24:06 da.mydomain.com bash[3170]: zone da.mydomain.com/IN: loaded serial 2017062500
Jul 25 04:24:06 da.mydomain.com bash[3170]: zone mydomain.com/IN: NS 'ns1.mydomain.com' has no address records (A or AAAA)
Jul 25 04:24:06 da.mydomain.com bash[3170]: zone mydomain.com/IN: NS 'ns2.mydomain.com' has no address records (A or AAAA)
Jul 25 04:24:06 da.mydomain.com bash[3170]: zone mydomain.com/IN: not loaded due to errors.
Jul 25 04:24:06 da.mydomain.com bash[3170]: _default/mydomain.com/IN: bad zone
Jul 25 04:24:06 da.mydomain.com bash[3170]: zone mydomain.ir/IN: loaded serial 2017062501
Jul 25 04:24:06 da.mydomain.com systemd[1]: named.service: control process exited, code=exited status=1
Jul 25 04:24:06 da.mydomain.com systemd[1]: Failed to start Berkeley Internet Name Domain (DNS).
Jul 25 04:24:06 da.mydomain.com systemd[1]: Unit named.service entered failed state.
Jul 25 04:24:06 da.mydomain.com systemd[1]: named.service failed.

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