自动化安装DHCP配置脚本

Posted 2020-10-13 Louis He

DHCP配置脚本：

#!/bin/sh

NET=192.168.6.0

MASK=255.255.255.0

RANGE="192.168.6.50 192.168.6.100"

DNS=114.114.114.114

DOMAIN_NAME="example.com"

ROUTER=192.168.6.254

test_yum(){

yum list dhcp >/dev/null 2&>1

if [ $? -ne 0 ];then

echo

echo "There was an error to connect to Yum repository."

echo "Please verify your yum repository settings and try again."

echo

exit

fi

}

test_conf(){

if [ -f /etc/dhcp/dhcp.conf ];then

mv /etc/dhcp/dhcp.conf /etc/dhcp/dhcp.conf.bak

fi

}

create_conf(){

cat >/etc/dhcp/dhcp.conf <<EOF

default-lease-time 600;

max-lease-time 7200;

subnet $NET netmask $MASK{

range $RANGE;

option domain-name-servers $DNS;

option domain-name "$DOMAIN_NAME";

option routers $ROUTER;

}

host passacaglia {

hardware ethernet 0:0:c0:5d:bd:95;

fixed-address 192.168.6.133;

EOF

}

rpm -q dhcp >/dev/null 2&>1

if [ $? -ge 0 ];then

test_yum

yum -y install dhcp >/dev/null 2&>1

fi

test_conf

create_conf

service dhcpd start

chkconfig dhcpd on