一键部署 DNS正向解析

 1 #!/bin/bash
 2 #一键部署DNS正向解析
 3 
 4 # 判断bind程序是否安装
 5 if rpm -q bind &> /dev/null
 6 then
 7    continue
 8 else
 9    if yum install -y bind &> /dev/null
10    then
11       continue
12    else
13       echo "BIND installation failed....."
14       exit
15    fi
16 fi
17 read -p "输入域名（格式：baidu.com）： " ym
18 read -p "输入要解析的IP：  " ip
19 
20 # 修改主配置文件
21 sed -i ‘s/127.0.0.1/any/‘ /etc/named.conf
22 sed -i ‘s/localhost;/any;/‘ /etc/named.conf
23 
24 # 修改区域配置文件
25 echo ‘zone "‘$ym‘" IN {
26         type master;
27         file "‘$ym‘.zone";
28         allow-update { none; };
29 };‘ >> /etc/named.rfc1912.zones
30 
31 # 复制区域数据文件模板并修改
32 cp -p /var/named/named.localhost /var/named/$ym.zone
33 sed -i ‘s/@ rname.invalid/‘$ym‘. admin.‘$ym‘/‘ /var/named/$ym.zone
34 sed -i ‘s/127.0.0.1/‘$ip‘/‘ /var/named/$ym.zone
35 sed -i ‘8 s/@/‘$ym‘./‘ /var/named/$ym.zone
36 echo  ‘www IN  A        ‘$ip‘‘ >> /var/named/$ym.zone
37 
38 # 判断named服务是否开启
39 if systemctl restart named  &> /dev/null
40 then
41     echo "name启动完成...."
42 else
43     echo "name启动失败，已退出！"
44     exit
45 fi
46 
47 # 修改临时DNS和IP的映射
48 echo ‘nameserver ‘$ip‘‘ > /etc/resolv.conf
49 echo "DNS正向解析已配置完成!"