拓扑图：

1、LVS配置脚本：

需要安装：ipvsadm-1.24-10.i386.rpm

vi  /etc/rc.d/init.d/lvsdr
#!/bin/bash
vip=192.168.1.249
web1=192.168.1.251
web2=192.168.1.252
./etc/rc.d/init.d/functions
case "$1" in
 start)
   echo "start lvs-dr"
   echo "1" > /proc/sys/net/ipv4/ip_forward
        ifconfig eth0:0 ${vip} broadcast ${vip} netmask 255.255.255.255 up
        route add -host ${vip} dev eth0:0
        ipvsadm -C
        ipvsadm -A -t ${vip}:80 -s rr
        ipvsadm -a -t ${vip}:80 -r ${web1}:80 -g
        ipvsadm -a -t ${vip}:80 -r ${web2}:80 -g
        ipvsadm
 ;;
 stop)
   echo "stop lvs-dr"
   echo "0" >/proc/sys/net/ipv4/ip_forward
        ipvsadm -C
        ifconfig eth0:0 down
 ;;

*)
   echo "Usage:$0 {start|stop}"
        exit 1
esac

启动：

[root@linux-1 lvs]# service lvsdr start
start lvs-dr
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
 -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  192.168.1.249:http rr
 -> 192.168.1.252:http           Route   1      0          0        
 -> 192.168.1.251:http           Route   1      0          0

二、web1配置脚本

vi /etc/rc.d/init.d/lvsweb
#!/bin/bash
vip=192.168.1.249
./etc/rc.d/init.d/functions
case "$1" in

  start)
     echo "start lvs-web1"
         ifconfig lo:0 ${vip} broadcast ${vip} netmask 255.255.255.255 up
         route add -host ${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
  ;;

  stop)
     echo "stop lvs-web1"
         ifconfig lo:0 down
         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 "Usage:$0 {start|stop}"
        exit 1
esac

启动脚本：

[root@linux-2 local]# service lvsweb start
start lvs-web1

在web1上/var/www/html 创建一个文件为index.html

cat /var/www/html/index.html
the is web1

三、web2配置脚本

vi  /etc/rc.d/init.d/lvsweb
#!/bin/bash
vip=192.168.1.249
./etc/rc.d/init.d/functions
case "$1" in

  start)
     echo "start lvs-web2"
         ifconfig lo:0 ${vip} broadcast ${vip} netmask 255.255.255.255 up
         route add -host ${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
  ;;

  stop)
     echo "stop lvs-web2"
         ifconfig lo:0 down
         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 "Usage:$0 {start|stop}"
        exit 1
esac

启动脚本：

[root@linux-3 ~]# service lvsweb start
start lvs-web2

在web2上/var/www/html 创建一个文件为index.html

cat /var/www/html/index.html
the is web2

#####################到此简单的LVS-DR集群成功##################

四，监控LVS (在LVS服务器上安装)

       1、安装rrdtool工具

       wget http://down1.chinaunix.net/distfiles/rrdtool-1.2.30.tar.gz

       tar zxvf rrdtool-1.2.30.tar.gz

      cd rrdtool-1.2.30

     ./configure --prefix=/usr/local/rrdtool

       make&&make install

       echo “/usr/local/rrdtool/lib” >>/etc/ld.so.conf

      ldconf -v

     2、安装lvs-rrd

       wget http://tepedino.org/lvs-rrd/lvs-rrd-v0.7.tar.gz

      tar tar zxvf lvs-rrd-v0.7.tar.gz

      mv lvs-rrd-v0.7 /var/www/html/lvs-rrd

     3、配置lvs-rrd

       cd  /var/www/html/lvs-rrd

        vi    lvs.rrd.update (只需要配置指定的路径即可)

       RRDTOOL="/usr/local/rrdtool/bin/rrdtool"
       IPVSADM="/sbin/ipvsadm"
       WORKDIR="/var/www/html/lvs-rrd"

      vi graph-lvs.sh

      WORKDIR="/var/www/html/lvs-rrd"
      RRDTOOL="/usr/local/rrdtool/bin/rrdtool"
      GRAPHS="$WORKDIR/graphs"
      WEBPATH="/lvs-rrd/graphs"

    4、设置权限：

         chown -R apache.apache graphs/

    5 、使用crontab 更新

         crontab -e

         * * * * * /var/www/html/lvs-rrd/lvs.rrd.update 2> /dev/null > /dev/null

#######################到此监控安装完毕##############################

测试结果：

http://192.168.1.250/lvs-rrd/

本文出自 “游造技术博客” 博客，请务必保留此出处http://youzao.blog.51cto.com/3946111/751443