安装使用lvs

yum -y install gcc gcc-c++ kernel-devel libnl* popt*
mkdir /usr/local/src/lvs
cd /usr/local/src/lvs
wget http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.26.tar.gz
ln -s /usr/src/kernels/2.6.32-358.11.1.el6.i686/ /usr/src/linux
tar zxvf ipvsadm-1.26.tar.gz 
cd ipvsadm-1.26
make
make install

lvs启动脚本 lvs.sh

#! /bin/bash 
SNS_VIP=192.168.1.11
SNS_RIP1=192.168.1.109
SNS_RIP2=192.168.1.110
. /etc/rc.d/init.d/functions

logger $0 called with $1
case "$1" in
        start)
                /sbin/ipvsadm --set 30 5 60
                /sbin/ifconfig eth0:0 $SNS_VIP broadcast $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP up
                /sbin/route add -host $SNS_VIP dev eth0:0
                /sbin/ipvsadm -A -t $SNS_VIP:80 -s wlc -p 120
                /sbin/ipvsadm -a -t $SNS_VIP:80 -r $SNS_RIP1:80 -g -w 1
                /sbin/ipvsadm -a -t $SNS_VIP:80 -r $SNS_RIP2:80 -g -w 1
                touch /var/lock/subsys/ipvsadm > /dev/null 2>&1
        ;;
        stop)
                /sbin/ipvsadm -C
                /sbin/ipvsadm -Z
                ifconfig eth0:0 down
                route del $SNS_VIP
                rm -rf /var/lock/subsys/ipvsadm > /dev/null 2>&1
                echo "ipvsadm stoped"
        ;;
        status)
                if [ ! -e /var/lock/subsys/ipvsadm ];then
                        echo "ipvsadm stoped"
                        exit 1
                else
                        echo "ipvsadm OK"
                fi
        ;;
        *)
                echo "Usage: $0 {start|stop|status}"
　　　　　　　　　　　　　　exit 1

　　　　　　esac
exit 0

后端配置脚本real.sh

#!/bin/bash
SNS_VIP=192.168.1.11
. /etc/init.d/functions
case "$1" in
    start)
        ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP
        /sbin/route add -host $SNS_VIP dev lo:0
        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
        sysctl -p > /dev/null 2>&1
        echo "RealServer Start OK"
    ;;  
    stop)
        ifconfig lo:0 down
        route del $SNS_VIP > /dev/null 2>&1
        echo "0" > /proc/sys/net/ipv4/conf/lo/arp_ignore
        echo "0" > /proc/sys/net/ipv4/conf/lo/arp_announce
        echo "0" > /proc/sys/net/ipv4/conf/all/arp_ignore
        echo "0" > /proc/sys/net/ipv4/conf/all/arp_announce
        echo "RealServer Stoped"
    ;;  
    *)  
        echo "Usage: $0 {start|stop}"
        exit 0
    esac
exit 0