Bind9仅本地可用问题求助：Apache2多站点部署时外部无法访问DNS域名

各位大佬好！我现在在部署Apache2多站点，需要用域名来访问这些站点，所以搭了Bind9作为DNS服务器，但遇到个棘手的问题——DNS只能在本地ping通，外部机器完全无法解析访问，有没有懂行的朋友能帮忙排查下问题出在哪？怎么解决呀？

我先把目前的配置文件贴出来，麻烦大家帮忙看看：

named.conf.options配置 #

directory "/var/cache/bind";

    // If there is a firewall between you and nameservers you want
    // to talk to, you may need to fix the firewall to allow multiple
    // ports to talk.  See http://www.kb.cert.org/vuls/id/800113
    // If your ISP provided one or more IP addresses for stable
    // nameservers, you probably want to use them as forwarders.
    // Uncomment the following block, and insert the addresses replacing
    // the all-0's placeholder.
    forwarders {
        1.2.3.4;
        5.6.7.8;
    };

    //========================================================================
    // If BIND logs error messages about the root key being expired,
    // you will need to update your keys.  See https://www.isc.org/bind-keys
    //========================================================================
    dnssec-validation no;

    listen-on-v6 { any; };
    listen-on { any; };

    allow-query-cache { any; };

    acl trusted {
        192.168.1.0/24;  // Local network
        10.0.0.0/8;     // Another local network
    };

    allow-query { trusted; };
};

resolve.conf配置 #

search rewardads.net
domain rewardads.net

db.rewardads.net区域文件配置 #

@       IN      SOA     dns.rewardads.com. root.dns.rewardads.net. (
                    2023110901 ; Serial
                    3600       ; Refresh
                    1800       ; Retry
                    604800     ; Expire
                    86400 )    ; Minimum TTL
        IN      NS      dns.rewardsads.net.
dns     IN      A       185.229.236.154

我自己检查了好多次，本地ping域名是正常的，但外部机器就是解析不了，是不是配置里有什么地方限制了外部访问？或者区域文件里有拼写错误？麻烦大家帮忙指点一下，谢谢啦！

备注：内容来源于stack exchange，提问作者Nathanub