绑定 DNS 配置,dig 命令不解析名称

绑定 DNS 配置,dig 命令不解析名称

我正在使用带有 bind 9 的 Fedora 17。

我尝试手动配置网络的 DNS,编辑 /etc/named.conf:

options {
listen-on port 53 { localhost; };
listen-on-v6 port 53 { ::1; };
directory   "/var/named";
dump-file   "/var/named/data/cache_dump.db";
    statistics-file "/var/named/data/named_stats.txt";
    memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query     { any;};
recursion yes;

dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;

/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";

managed-keys-directory "/var/named/dynamic";
};

logging {
    channel default_debug {
            file "data/named.run";
            severity dynamic;
    };
};

zone "." IN {//Per tutte le zone di cui non è autoritario;
type hint;
file "named.ca";
};

zone "gruppo13.labreti.it" {
type master;
file "gruppo13.labreti.it.zone";
};


zone "13.168.192.in-addr.arpa" IN {
type master;
file "gruppo13.labreti.it.reverse.zone";
}


include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";

PS:原始文件中还有更多制表符,我只是对其进行了编辑以将其格式化为代码。如果我使用 named-checkconf 查找语法错误,它会说一切正常。

这是 gruppo13.labreti.it.zone:

$TTL 48h
@   IN  SOA gruppo13.labreti.it.    master.gruppo13.labreti.it. (
2013032511
1d
2h
4w
1h
)

IN  NS  dns
MX  1   mail
localhost   A   127.0.0.1
gruppo13.labreti.it.    A   192.168.13.1
        AAAA    2000:0::d:1
dns A   192.168.13.2
AAAA    2000:0::d:2
www A   192.168.13.8
AAAA    2000:0::d:8
ftp CNAME   gruppo13.labreti.it.
mail    A   192.168.13.3
AAAA    2000:0::d:3

PS:同样的事情对于此文件和以下文件有效。

这是 gruppo13.labreti.it.reverse.zone:

$TTL 48h
@   IN  SOA gruppo13.labreti.it. master.gruppo13.labreti.it. (
2013032511
1d
2h
4w
1h
)
NS  gruppo13.labreti.it.
2   PTR dns
8   PTR www
3   PTR mail

我使用以下命令进行命名启动:

$ sudo systemctl start named.service

然后我输入这个命令:

$ sudo ifconfig eth0 192.168.13.100 netmask 255.255.255.0 broadcast 192.168.13.255

此后,我编辑 resolv.conf,使 DNS 地址为 192.168.13.100。

但如果我运行 dig:

$ dig gruppo13.labreti.it

我没有得到答案,这是日志:

; <<>> DiG 9.9.2-rl.028.23-P1-RedHat-9.9.2-5.P1.fc17 <<>> gruppo13.labreti.it
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 58814
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;gruppo13.labreti.it.       IN  A

;; Query time: 13 msec
;; SERVER: 192.168.13.100#53(192.168.13.100)
;; WHEN: Mon Mar 25 23:31:28 2013
;; MSG SIZE  rcvd: 48

答案1

如果按此顺序执行此操作,则需要重新加载 bind,然后它才能开始侦听此 IP。您可以通过以下方式检查 bind 正在侦听的位置:

netstat -an | grep :53

(对于正常查询,udp 很有趣,如下所示:

udp        0      0 127.0.0.2:53            0.0.0.0:*
udp        0      0 127.0.0.1:53            0.0.0.0:*

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