# yum install epel-release

# yum install wget net-tools telnet tree nmap sysstat lrzsz dos2unix bind-utils -y

hdss7-11上

~]# yum install bind -y

~]# vi /etc/named.conf
listen-on port 53 { 10.4.7.11; };		//bind监听地址
allow-query     { any; };				//允许任何主机使用该dns
forwarders      { 10.4.7.254; };		//上级网关
dnssec-enable no;
dnssec-validation no;
recursion yes;							//递归的方式查询

~]# named-checkconf 					//检查配置


/etc/named.rfc1912.zones


zone "host.com" IN {
        type  master;
        file  "host.com.zone";
        allow-update { 10.4.7.11; };
};

zone "od.com" IN {
        type  master;
        file  "od.com.zone";
        allow-update { 10.4.7.11; };
};

/var/named/host.com.zone


$ORIGIN host.com.
$TTL 600	; 10 minutes
@       IN SOA	dns.host.com. dnsadmin.host.com. (
				2019111001 ; serial
				10800      ; refresh (3 hours)
				900        ; retry (15 minutes)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)
			NS   dns.host.com.
$TTL 60	; 1 minute
dns                A    172.16.10.13
HDSS7-11           A    172.16.10.13
HDSS7-12           A    172.16.10.14
HDSS7-21           A    172.16.10.15
HDSS7-22           A    172.16.10.16
HDSS7-200          A    172.16.10.12


/var/named/od.com.zone

$ORIGIN od.com.
$TTL 600	; 10 minutes
@   		IN SOA	dns.od.com. dnsadmin.od.com. (
				2019111001 ; serial
				10800      ; refresh (3 hours)
				900        ; retry (15 minutes)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)
				NS   dns.od.com.
$TTL 60	; 1 minute
dns                A    172.16.10.13

systemctl start named
systemctl enable named

修改客户端网卡配置文件，将dns指向172.16.10.13
修改主机名： hostnamectl set-hostname hdss7-11.host.com

检查是否配置完成：
dig -t A hdss7-11.host.com @172.16.10.13 +short
dig -t A dns.od.com @172.16.10.13 +short