# slave（主備模式） ## Server：192.168.1.211 ``` vim /etc/named.conf zone "example.com" IN { type master; file "example.com"; allow-transfer { 192.168.1.210; }; }; zone "1.168.192.in-addr.arpa" IN { type master; file "com.example"; allow-transfer { 192.168.1.210; }; }; vim /var/named/example.com $TTL 1D @ IN SOA dns.example.com. root.example.com. ( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum @ IN NS dns.example.com. dns IN A 192.168.1.211 @ IN NS dns1.example.com. dns1 IN A 192.168.1.210 @ IN MX 5 mail.example.com. mail IN A 192.168.1.211 www IN A 192.168.1.211 ftp IN CNAME www vim /var/named/com.example $TTL 1D @ IN SOA dns.example.com. root.example.com. ( 0 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum @ IN NS dns.example.com. 11 IN PTR dns.example.com. @ IN NS dns1.example.com. 10 IN PTR dns1.example.com. @ IN MX 5 mail.example.com. 11 IN PTR mail.example.com. 11 IN PTR www.example.com. firewall-cmd --permanent --add-service=dns systemctl restart named ``` ## Desktop：192.168.1.210 ``` yum -y install bind vim /etc/named.conf zone "example.com" IN { type slave; file "slaves/example.com"; masters { 192.168.1.211; }; }; zone "1.168.192.in-addr.arpa" IN { type slave; file "slaves/1.168.192.zone"; masters { 192.168.1.211; }; }; firewall-cmd --permanent --add-service=dns firewall-cdm --reload systemctl start named.service ``` ## 物理機： ``` vim /etc/resolv.conf nameserver 192.168.1.211 nameserver 192.168.1.210 ```