常用的shell脚本之一键部署DNS服务正向解析(棒棒的)

#!/bin/bash
#一键部署DNS正向解析

# 判断bind程序是否安装
if rpm -q bind &> /dev/null
then
   continue
else
   if yum install -y bind &> /dev/null
   then
      continue
   else
      echo "BIND installation failed....."
      exit
   fi
fi
read -p "输入域名（格式：baidu.com）： " ym
read -p "输入要解析的IP：  " ip

# 修改主配置文件
sed -i ‘s/127.0.0.1/any/‘ /etc/named.conf
sed -i ‘s/localhost;/any;/‘ /etc/named.conf

# 修改区域配置文件
echo ‘zone "‘$ym‘" IN {
        type master;
        file "‘$ym‘.zone";
        allow-update { none; };
};‘ >> /etc/named.rfc1912.zones

# 复制区域数据文件模板并修改
cp -p /var/named/named.localhost /var/named/$ym.zone
sed -i ‘s/@ rname.invalid/‘$ym‘. admin.‘$ym‘/‘ /var/named/$ym.zone
sed -i ‘s/127.0.0.1/‘$ip‘/‘ /var/named/$ym.zone
sed -i ‘8 s/@/‘$ym‘./‘ /var/named/$ym.zone
echo  ‘www IN  A        ‘$ip‘‘ >> /var/named/$ym.zone

# 判断named服务是否开启
if systemctl restart named  &> /dev/null
then
    echo "name启动完成...."
else
    echo "name启动失败，已退出！"
    exit
fi

# 修改临时DNS和IP的映射
echo ‘nameserver ‘$ip‘‘ > /etc/resolv.conf
echo "DNS正向解析已配置完成!"