Ubuntu搭建DNS服务器

Ubuntu搭建DNS服务器

下载bind9

1. 执行如下命令

   apt-get install bind9

编辑bind9配置文件

1. 找到/etc/bind/name.conf.default-zones文件
   并在末尾添加

   zone "www.domainname.com" {
        type master;
        file "/etc/bind/db.ip2domainname.com";
   };
    
   zone "jkl.ghi.def.abc.in-addr.arpa" {
        type master;
        file "/etc/bind/db.domainname2ip";
   };

   其中jkl.ghi.def.abc为服务器ip的反写

2. 然后在/etc/bind中创建db.ip2domainname.com文件和db.domainname2ip文件，注意这两个文件名要和name.conf.default-zones中配置的file相同

3. 然后在db.ip2domainname.com文件中填写如下内容

   ;
   ; BIND data file for local loopback interface
   ;
   $TTL    604800
   @       IN      SOA     ns.www.domainname.com. root.www.domainname.com. (
                              2         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
   ;
   @       IN      NS      ns.www.domainname.com.
   @       IN      A       abc.def.ghi.jkl
   ns      IN      A       abc.def.ghi.jkl
   cn      IN      A       abc.def.ghi.jkl

   注意：需要把下面的www.domainname.com换成你的域名，不要漏掉了域名后面的小数点，abc.def.ghi.jkl是www.domainname.com服务器的ip，需要替换成你自己的。

4. 然后在db.domainname2ip文件中填写如下内容,同样要替换www.domainname.com为你的域名。100是www.domainname.com服务器的ip的最后一段，需要替换成你自己的。

    ;
    ; BIND reverse data file for local loopback interface
    ;
    $TTL    604800
    @       IN      SOA     ns.www.domainname.com. root.www.domainname.com. (
                               1         ; Serial
                          604800         ; Refresh
                           86400         ; Retry
                         2419200         ; Expire
                          604800 )       ; Negative Cache TTL
    ;
    @       IN      NS      www.domainname.com.
    1.0.0   IN      PTR     cn.domainname.com.
    100     IN      PTR     domainname.com.
    100     IN      PTR     www.domainname.com.
    100     IN      PTR     dns.domainname.com.
    100     IN      PTR     cn.domainname.com.

5. 然后修改/etc/bind/named.conf.options文件为如下内容

   options {
    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.
    //forward first;  
    forwarders {
        223.5.5.5;
        223.6.6.6;
    };
    
    //========================================================================
    // 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
    //========================================================================
    listen-on{ any; };
    recursion yes;
    allow-query { any; };
   };

6. 然后执行service bind9 restart重启bind9　DNS服务器
7. 接下来还需要修改路由器配置，把DNS服务器ip换成自己搭建的DNS服务器的ip即可