CentOS-7.5-配置DNS服务器

#服务器环境配置

#系统:windows 10
#虚拟主机服务器:CentOS 7.5
#配置 DNS 服务器
#服务器ip:192.168.122.144

#关闭selinux操作的
setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g"  /etc/selinux/config

#安装程序
yum install bind* -y


rpm -qc bind
rpm -qa | grep bind

#启动DNS服务
systemctl enable named-chroot.service

#设置防火墙
firewall-cmd --add-service=dns --permanent
firewall-cmd --add-service=dns


vim /etc/named.conf

options {
      listen-on port 53 { 127.0.0.1; 192.168.122.144; 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     { localhost; };
      allow-query     { any; };

      /*
       - If you are building an AUTHORITATIVE DNS server, do NOT enable recursion.
       - If you are building a RECURSIVE (caching) DNS server, you need to enable
         recursion.
       - If your recursive DNS server has a public IP address, you MUST enable access
         control to limit queries to your legitimate users. Failing to do so will
         cause your server to become part of large scale DNS amplification
         attacks. Implementing BCP38 within your network would greatly
         reduce such attack surface
      */
      recursion yes;

      dnssec-enable yes;
      dnssec-validation yes;

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

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

      pid-file "/run/named/named.pid";
      session-keyfile "/run/named/session.key";
};

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


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

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



vim /var/named/gxnyxy.cn.zone

$TTL 1D
@       IN SOA  @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
www IN        A       10.0.8.33
ftp IN        A       10.0.8.33
test IN A       10.0.8.22
        AAAA    ::1


vim /etc/resolv.conf
nameserver 192.168.122.144

vim /etc/sysconfig/network-scripts/ifcfg-ens4

DNS1=192.168.122.144


systemctl restart named.service

systemctl restart named-chroot.service


dig -t A www.gxnyxy.cn @192.168.122.144
dig -t A ftp.gxnyxy.cn @192.168.122.144
dig -t A test.gxnyxy.cn @192.168.122.144