DNS主从同步Shell脚本

主服务器

[root@localhost ~]# vim sa.sh
#!/bin/bash
#DNS正向解析脚本文件

#安装服务包
yum install bind -y

修改主配置文件
sed -i '/listen-on/s/127.0.0.1/192.168.217.130/' /etc/named.conf
sed -i '/allow-query/s/localhost/any/' /etc/named.conf

#修改区域配置文件
cat >>/etc/named.rfc1912.zones <<-EOF
zone "kgc.com." IN {
        type master;
        file "kgc.com.zone";
        allow-transfer { 192.168.217.132; };
};
EOF

#复制区域数据配置文件模板
cp -p /var/named/named.localhost /var/named/kgc.com.zone

#修改区域数据配置文件
sed -i '2s/@/kgc.com/2' /var/named/kgc.com.zone
sed -i '2s/rname.invalid./admin.kgc.com/' /var/named/kgc.com.zone
sed -i '8s/@/kgc.com/' /var/named/kgc.com.zone
sed -i '9s/::1/192.168.217.130/' /var/named/kgc.com.zone
sed -i '10d' /var/named/kgc.com.zone
cat >>/var/named/kgc.com.zone <<-EOF
IN      MX      10      mail.kgc.com
www     IN      A       192.168.100.99
ftp     IN      A       192.168.100.88
stmp    IN      CNAME   www
*       IN      A       8.8.8.8
EOF


#开启服务
systemctl start named

#关闭防火墙
systemctl stop firewalld.service
setenforce 0

#修改dns解析地址配置文件
echo "nameserver 192.168.217.130" > /etc/resolv.conf
[root@localhost ~]# chmod +x sa.sh
[root@localhost ~]# ./sa.sh

从服务器

[root@localhost ~]# vim b.sh
#!/bin/bash
#DNS正向解析脚本文件

#安装服务包
yum install bind -y

#修改主配置文件
sed -i '/listen-on/s/127.0.0.1/192.168.217.132/' /etc/named.conf
sed -i '/allow-query/s/localhost/any/' /etc/named.conf

#修改区域配置文件
cat >>/etc/named.rfc1912.zones <<-EOF
zone "kgc.com." IN {
        type slave;
        file "slaves/kgc.com.zone";
        masters { 192.168.217.132; };
};
EOF

#开启服务
systemctl start named

#关闭防火墙
systemctl stop firewalld.service
setenforce 0

#修改dns解析地址配置文件
echo "nameserver 192.168.217.132" > /etc/resolv.conf
[root@localhost ~]# chmod +x b.sh
[root@localhost ~]# ./b.sh