Centos7 搭建 Keepalived+LVS 备注

NAT模型需要RealServer gateway设定为，DR模式需要执行 RealServer.sh。需要先安装network-tools.

#!/bin/bash#description : start realserver VIP=192.168.8.188host=‘/bin/hostname‘case "$1" in        start)        echo " start LVS of REALServer"        /sbin/ifconfig lo down        /sbin/ifconfig lo up        echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore        echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce        echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore        echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce        /sbin/ifconfig lo:0 $VIP netmask 255.255.255.255 up        /sbin/route add -host $VIP dev lo:0        ;;        stop)        /sbin/ifconfig lo:0 down        ;;        status)        islothere=‘/sbin/ifconfig lo:0 | grep $VIP‘        isrothere=‘netstat -rn | grep "lo" | grep $VIP‘        if[! "$islothere" -o ! "$isrothere"];then           echo "LVS-DR real server stoped"        else            echo "LVS-DR Running"        fi        ;;        *)        echo "$0: Usage: $0 {start|status|stop}"        exit 1        ;;esac