CentOS DNS服务器搭建_rndc couldn't find server localhost-优快云博客

本文链接：https://blog.youkuaiyun.com/bocycn/article/details/5134508

本文介绍如何使用BIND在Linux上快速搭建DNS服务器，包括安装BIND、配置named.conf文件、创建zone文件及启动服务等步骤，并解决了rndcstatus命令无法找到服务器的问题。

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由于是实验性质的，没有很多的安全考虑，追求的是简单，快速的建好。

首先yum安装bind
#yum update #yum -y install bind* caching-nameserver # rpm -qa bind* bind-libs-9.2.4-30.el4_8.4 bind-devel-9.2.4-30.el4_8.4 bind-utils-9.2.4-30.el4_8.4 bind-9.2.4-30.el4_8.4 bind-chroot-9.2.4-30.el4_8.4 #查看BIND版本，我的是9.2.4的

设定.conf

#vi   /var/named/chroot/etc/named.conf

//
// named.conf for Red Hat caching-nameserver 
//

options {
        directory "/var/named";
        dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        /*
         * If there is a firewall between you and nameservers you want
         * to talk to, you might need to uncomment the query-source
         * directive below. Previous versions of BIND always asked
         * questions using port 53, but BIND 8.1 uses an unprivileged
         * port by default.
         */
         // query-source address * port 53;
};

// 
// a caching only nameserver config
// 
controls {
        inet 127.0.0.1 allow { localhost; } keys { rndckey; };
};

zone "." IN {
        type hint;
        file "named.ca";
};

zone "localdomain" IN {
        type master;
        file "localdomain.zone";
        allow-update { none; };
};
zone "test.com" IN {
        type master;
        file "test.com.zone";
        allow-update { none; };
};

zone "localhost" IN {
        type master;
        file "localhost.zone";
        allow-update { none; };
};

zone "0.0.127.in-addr.arpa" IN {
        type master;
        file "named.local";
        allow-update { none; };
};

zone "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 {
        type master;
        file "named.ip6.local";
        allow-update { none; };
};

zone "255.in-addr.arpa" IN {
        type master;
        file "named.broadcast";
        allow-update { none; };
};

zone "0.in-addr.arpa" IN {
        type master;
        file "named.zero";
        allow-update { none; };
};

include "/etc/rndc.key";

添加zone文件

# cd /var/named/chroot/var/named/ # cp -p localdomain.zone test.com.zone #加-p参数能保持文件原来的属性 # vi test.com.zone TTL 86400 @ IN SOA test.com root ( 42 ; serial (d. adams) 3H ; refresh 15M ; retry 1W ; expiry 1D ) ; minimum IN NS test.com www IN A 192.168.84.112 //把原来的localhost替换成你自己的域名，我这里是test.com,www是一条A记录，如果你有邮件，也可以加MX记录，保存退出。

这样正向查询的记录就已建好，由于我是测试，没有去建反向查询的zone文件，原理是一样的。

启动并将其加入系统自动服务列表。

# service named start # chkconfig named on

在我建好的时候，碰到这样的问题

# rndc status

Rndc: Couldn't find server 'localhost': Name or service not known

解决方法：

1 修改/etc/rndc.conf
options { default-key "rndc-key"; default-server 127.0.0.1; #这里改成了IP地址，原来是localhost default-port 953; };
2 在文件/etc/hosts 里加上

127.0.0.1 localhost.localdomain localhost