无法启动带有 Bind9 和 BIND_DLZ 的动态 DNS？

我有一个使用 BIND_DLZ 作为后端运行 Samba 作为 Active Directory 域控制器的设备。

最重要的是，我正在运行一个辅助设备，该设备也配置为 Active Directory 域控制器，也使用 BIND_DLZ 作为后端以实现冗余目的。

IP 地址由 ISC DHCP 服务器分配，该服务器能够使用加密密钥 (TSIG) 更新 DNS 资源记录。

无论如何：关于我的问题。

这是我目前的设置

命名.conf.options：

options 
{
     directory "/var/cache/bind";

     forwarders {
            2001:4860:4860::8888;
            2001:4860:4860::8844;
            8.8.8.8;
            8.8.4.4;
     };

     auth-nxdomain no;    # conform to RFC1035
     listen-on-v6 { any; };

     listen-on port 53 { 192.168.1.240; };
     listen-on port 5353 { 127.0.0.1; }; <-- Used for Netflix IPv6 filter only.

     tkey-gssapi-keytab "/var/lib/samba/bind-dns/dns.keytab";
     minimal-responses yes;
     recursion yes;
};

acl "home-net"
{
    127.0.0.1;
    192.168.1.0/24;
    2001:db8:cafe:beef::/56; # <-- I am using a IPv6 range from Tunnelbroker in real life.
};

view "normal"
{
    include "/etc/bind/named.conf.default-zones";
    include "/etc/bind/named.conf.internal";

    # Netflix really dislike Tunnelbroker IPv6, so I am dropping any Netflix AAAA ressources records.
    include "/etc/bind/netflix-ipv6-blackhole.conf";  

    match-clients
    {
        home-net; # <-- Only respond to queries originating from my own network.
    };

    dnssec-enable yes;
    dnssec-validation auto;

    allow-query { any; };
    allow-query-cache { home-net; };
    allow-recursion { home-net; };

    forwarders {
      8.8.8.8;
      8.8.4.4;
      2001:4860:4860::8888;
      2001:4860:4860::8844;
   };
};

命名的.conf.internal：

zone "1.168.192.in-addr.arpa"
{
    type master;
    file "/etc/bind/db.192.168.1.rev";
    notify yes;

    allow-query { any; };
    allow-transfer { xfer; };

    # If allow-update is enabled instead of the include named.conf.update line, 
    # then Dynamic DNS works fine due to ISC DHCP can update the ressource records. 
    #
    # Sadly you can't have both lines enabled. It is either / or.

    // allow-update { key ddns-key; };

    include "/var/lib/samba/bind-dns/named.conf.update"; # <-- Having issues with THIS line only.
};

include "/var/lib/samba/bind-dns/named.conf";

/var/lib/samba/bind-dns/named.conf：

dlz "AD DNS Zone" {
    # For BIND 9.11.x
    database "dlopen /usr/lib/arm-linux-gnueabihf/samba/bind9/dlz_bind9_11.so";
};

/var/lib/samba/bind-dns/named.conf.update：

/* this file is auto-generated - do not edit */
update-policy {
        grant EXAMPLE.COM ms-self * A AAAA;
        grant [email protected] wildcard * A AAAA SRV CNAME;

        # Main Active Directory Domain Controller
        grant [email protected] wildcard * A AAAA SRV CNAME;

        # Backup Active Directory Domain Controller
        grant [email protected] wildcard * A AAAA SRV CNAME;
};

如果我尝试使用此配置开始绑定，我会得到一个我无法弄清楚的相当奇怪的错误：

/var/lib/samba/bind-dns/named.conf.update:3: name field not set to placeholder value '.'

有没有人可以告诉我named.conf.update有什么问题？