LVS DR模型
#!/bin/bash#description: Config director
VIP=192.168.22.222
RIP1=192.168.22.131
RIP2=192.168.22.132
case "$1" in
start)
#**配置别名保存vip, vip只跟自己通信**
ifconfig eth0:1 $VIP broadcast $VIP netmask 255.255.255.255 up
route add -host $VIP dev eth0:1 #如果目标是vip，则通过eth0:1出去。
echo 1 > /proc/sys/net/ipv4/ip_forward #打开路由转发
/sbin/iptables -F #清空iptables，iptables与ipvsadm不能同时用
/sbin/iptables -Z #重置iptables
/sbin/ipvsadm -C #清空ipvsadm
ipvsadm -A -t $VIP:80 -s wrr
ipvsadm -a -t $VIP:80 -r $RIP1:80 -w 1 -g
ipvsadm -a -t $VIP:80 -r $RIP2:80 -w 1 -g
echo "ipvsadm start ok"
;;
stop)
ifconfig eth0:1 $VIP broadcast $VIP netmask 255.255.255.255 down
echo 0 > /proc/sys/net/ipv4/ip_forward
/sbin/ipvsadm -C
echo "ipvsadm stoped"
;;
status)
isrunning=`ipvsadm -L -n | grep $VIP`
if [ ! "$isrunning" ]; then
echo "ipvsadm is stoped..."
else
echo "ipvsadm is running..."
ipvsadm -L -n
fi
;;
*)
echo "Usage: $0 {start|stop|status}"
exit 1
esac
exit 0
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