#!/bin/bash
VIP="192.168.32.5"
IFVIP="${VIP}/20"
INTERFACE="eth01"

ip addr add $IFVIP dev $INTERFACE 2>/dev/null
arping -c 3 -A -I $INTERFACE $VIP

logger "Keepalived: DHCP is back, rejoining as MASTER."
sed -i "s|STATUS=.*|STATUS=MASTER|g" /etc/keepalived/keepalived_dhcpd.txt
systemctl    restart    dhcpd4
# systemctl restart keepalived  # 重新启动 Keepalived，恢复 VIP