嘗試在虛擬 Linux 電腦中啟動 dns 服務時觀察到以下錯誤
[root@mininat ~]# service named status
Redirecting to /bin/systemctl status named.service
named.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/usr/lib/systemd/system/named.service; disabled)
Active: failed (Result: exit-code) since Wed 2015-03-04 03:36:40 EST; 1min 58s ago
Process: 6135 ExecStartPre=/usr/sbin/named-checkconf -z /etc/named.conf (code=exited, status=1/FAILURE)
Process: 6133 ExecStartPre=/usr/libexec/generate-rndc-key.sh (code=exited, status=0/SUCCESS)
Mar 04 03:36:40 mininat.benunets.com named-checkconf[6135]: _default/benu123.com/IN: unexpected end of input
Mar 04 03:36:40 mininat.benunets.com named-checkconf[6135]: zone localhost.localdomain/IN: loaded serial 2010052601
Mar 04 03:36:40 mininat.benunets.com named-checkconf[6135]: zone localhost/IN: loaded serial 2010052601
Mar 04 03:36:40 mininat.benunets.com named-checkconf[6135]: zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
Mar 04 03:36:40 mininat.benunets.com named-checkconf[6135]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Mar 04 03:36:40 mininat.benunets.com named-checkconf[6135]: zone 0.in-addr.arpa/IN: loaded serial 0
Mar 04 03:36:40 mininat.benunets.com systemd[1]: named.service: control process exited, code=exited status=1
Mar 04 03:36:40 mininat.benunets.com systemd[1]: Failed to start Berkeley Internet Name Domain (DNS).
Mar 04 03:36:40 mininat.benunets.com systemd[1]: Unit named.service entered failed state.
Mar 04 03:38:36 mininat.benunets.com systemd[1]: Stopped Berkeley Internet Name Domain (DNS).
[root@mininat ~]# service named start
Redirecting to /bin/systemctl start named.service
Job for named.service failed. See 'systemctl status named.service' and 'journalctl -xn' for details.
[root@mininat ~]# service named status
Redirecting to /bin/systemctl status named.service
named.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/usr/lib/systemd/system/named.service; disabled)
Active: failed (Result: exit-code) since Wed 2015-03-04 03:38:44 EST; 2s ago
Process: 6309 ExecStartPre=/usr/sbin/named-checkconf -z /etc/named.conf (code=exited, status=1/FAILURE)
Process: 6306 ExecStartPre=/usr/libexec/generate-rndc-key.sh (code=exited, status=0/SUCCESS)
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: zone benu123.com/IN: not loaded due to errors.
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: _default/benu123.com/IN: unexpected end of input
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: zone localhost.localdomain/IN: loaded serial 2010052601
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: zone localhost/IN: loaded serial 2010052601
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: zone 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 0
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: zone 1.0.0.127.in-addr.arpa/IN: loaded serial 0
Mar 04 03:38:44 mininat.benunets.com named-checkconf[6309]: zone 0.in-addr.arpa/IN: loaded serial 0
Mar 04 03:38:44 mininat.benunets.com systemd[1]: named.service: control process exited, code=exited status=1
Mar 04 03:38:44 mininat.benunets.com systemd[1]: Failed to start Berkeley Internet Name Domain (DNS).
Mar 04 03:38:44 mininat.benunets.com systemd[1]: Unit named.service entered failed state.
請在下面找到我的區域文件
[root@mininat ~]# vi /var/named/benu123.com
$TTL 86400
@ IN SOA benu123.com. root(
2010052601 ; serial
3600 ; refresh
1800 ; retry
604800 ; expire
86400 ; minimum
)
IN NS benu123.com
localhost IN A 127.0.0.1
localhost IN AAAA ::1
benu55 IN AAAA 2001::2222
benu89 IN AAAA 2002::2222
~
答案1
如您所注意到的，Bind 無法啟動的原因是預啟動檢查傳回的錯誤條件：/usr/sbin/named-checkconf -z /etc/named.conf。你需要解決這個問題。
~區域文件末尾的單獨波浪號字元不是有效的資源記錄，應將其刪除。
您正在聲明一個區域內名稱伺服器：
IN NS benu123.com
無需A 為您的名稱伺服器建立記錄。這完全是錯誤的。此外，不以 a 結尾的資源記錄.將被視為 DNS 簡寫並附加 $ORIGIN（區域名稱），因此您現在擁有的功能在功能上等同於：
IN NS benu123.com.benu123.com.
你可能應該想要這樣的東西：
$ORIGIN benu123.com.
$TTL 86400
@ IN SOA benu123.com. root.benu123.com(
2014030401 ; serial
3600 ; refresh
1800 ; retry
604800 ; expire
86400 ; minimum
)
IN NS benu123.com.
@ IN A 192.168.1.1 ; replace this with the ip-address of your name-server
localhost IN A 127.0.0.1
localhost IN AAAA ::1
benu55 IN AAAA 2001::2222
benu89 IN AAAA 2002::2222
我將其用作@另一個 DNS 速記技巧，它相當於 $ORIGIN 或網域 benu123.com。
答案2
至少 NS 條目需要 A 或 AAAA 記錄（很可能末尾有一個點，除非您的名稱伺服器名為 benu123.com.benu123.com）。