ubuntu部署dns服务器

ubuntu部署dns服务器

环境:ubuntu16.04

dns-server:172.30.21.117

zabbix-server:172.30.21.105

nexus-server: 172.30.21.112

安装步骤

1、安装软件包

apt-get update -y && apt-get install bind9 -y

2、关闭防火墙

ufw disable

3、在/etc/bind/named.conf.default-zones添加需要解析的域,以onap.cmcc为例

cat /etc/bind/named.conf.default-zones

zone "onap.cmcc" {
        type master;
        file "/etc/bind/db.onap.cmcc";
};

4、添加域记录文件

;
; BIND data file for local loopback interface
;
$TTL	604800
@	IN	SOA	onap.cmcc. root.localhost. (
			      1		; Serial
			 604800		; Refresh
			  86400		; Retry
			2419200		; Expire
			 604800 )	; Negative Cache TTL
;
@	IN	NS	localhost.
onap.cmcc IN    NS	172.30.21.117
zabbix	IN	A	172.30.21.105
nexus   IN	A	172.30.21.112

5、编辑named.conf.options文件,为局域网其他机器提供dns服务(修改option的listen-on语句)

acl goodclients {
        172.30.0.0/24;
        localhost;
        localnets;
};
options {
        directory "/var/cache/bind";
        //recursion yes;                 # 启用递归寻址
        //allow-recursion { trusted; };  # 允许“trusted”列表前来递归寻址
        listen-on port 53 {127.0.0.1;192.168.1.108; };   # 此处填写ns1的内网IP地址。仅在内网监听
        allow-transfer { none; };      # 默认禁用zone transfer
        
        // 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 {
        //      0.0.0.0;
        // };

        //========================================================================
        // 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 auto;

        auth-nxdomain no;    # conform to RFC1035
        listen-on-v6 { any; };
        forwarders {
            202.106.0.20;
            8.8.8.8;
        };
        allow-query { goodclients;};
};

6、重启dns服务器

    service bind9 restart

7、客户端配置dns服务器地址,测试解析效果

     echo "nameserver 172.30.21.117" >>resolv.conf
     
     nslookup zabbix.onap.cmcc

8、rndc 管理bind

     Bind 9之后提供新的功能为”rndc”(remote name daemon control),可视为Bind旧版ndc的延伸,它可使系统管理者利用rndc command远端或本端(localhost)控制管理Bind,

     并以加密方式來传送资料,以防止其他非授权使用者控制Bind。

    rndcflush 清空本地DNS缓存
    rndcflushname name刷新指定域名的缓存
    rndcreload重载DNS服务器
    rndc status 查看目前DNS服务器状态
    rndc stop 停止DNS服务器
    rndc restart 重新启动DNS服务器
    rndc stats 生成DNS统计报表到statistics-file
    rndc dumpdb   将所有缓存输入文件named_dump.db,以查看DNS缓存,DNS缓存是在内存中的
    success:成功查询的次数
    referral:就是非recursion的查询次数
    nxrrset:有这个域名,但找不到解析记录
    nxdomain:就是域名都找不到
    recursion:递归查询 failure:除上面那些之外的查询失败响应次数

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转载自blog.csdn.net/weixin_47003048/article/details/108319972