BIND9 不監聽外部 ip

BIND9 不監聽外部 ip

我正在嘗試配置綁定以在外部網路中廣播我的網域,但我的伺服器未偵聽外部 IP。

本地一切正常。

我的網頁介面:

 enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
       inet INTERNAL_IP  netmask 255.255.255.0  broadcast 192.168.55.255
       inet6 INTERNAL_IP_V6  prefixlen 64  scopeid 0x20<link>


 lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
       inet 127.0.0.1  netmask 255.0.0.0
       inet6 ::1  prefixlen 128  scopeid 0x10<host>
       loop  txqueuelen 1000  (Local Loopback)

即使 iptables 關閉:

sudo iptables -L -n
Chain INPUT (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0

Chain FORWARD (policy DROP)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0

命名.conf.選項:

    options {
    directory "/var/cache/bind";
    statistics-file "/run/named/named.stats";
    pid-file "/run/named/named.pid";
    session-keyfile "/run/named/session.key";

     forwarders {
            x.x.x.x;     # gateway or router
            8.8.8.8;
            8.8.4.4;
            external ip;
     };

    dnssec-validation auto;

    listen-on-v6 port 53 {any;};

    listen-on port 53 {any;};

    auth-nxdomain yes;            # conform to RFC1035
    allow-query { any; };         # allow anyone to issue queries
    allow-recursion { any; };
    allow-query-cache { any; };
    recursion no;                 # disallow recursive queries
    version "[SECURED]";
};

網路統計:

netstat -tulpn | grep :53
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 INTERNAL_IP:53          0.0.0.0:*               LISTEN      -
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      -
tcp6       0      0 :::53                   :::*                    LISTEN      -
udp        0      0 INTERNAL_IP:53          0.0.0.0:*                           -
udp        0      0 127.0.0.1:53            0.0.0.0:*                           -
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           -
udp6       0      0 :::53                   :::*                                -
udp6       0      0 :::5353                 :::*                                -

烏夫沃:

sudo ufw status
Status: active

To                         Action      From
--                         ------      ----
DNS                        ALLOW       Anywhere
DNS (v6)                   ALLOW       Anywhere (v6)

nmap 顯示:

53/tcp filtered domain 

我究竟做錯了什麼?

預先感謝您的幫助,Slawek。

答案1

我在 ubuntu 22 上使用 bind9 測試了您的配置。我認為您的連接埠轉送效果不佳。您應該為 tcp 和 udp 協定進行連接埠轉發

答案2

要關閉,它會暫時停止樂趣,沒有時間。感謝您的關注,我知道我還需要檢查什麼。問候。

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