配置基于DR模式Lvs集群

Load Balancer： 172.18.3.208

Real Server 1： 172.18.3.205

Real Server 2： 172.18.3.207

 

 

软件

ipvsadm-1.24.tar.gz:

 

tar zxvf ipvsadm-1.24.tar.gz

cd ipvsadm-1.24

make && make install

注意在make时可能会出现很多错误的信息，请按照如下操作就可以心编译正常

ln -s /usr/src/kernels/2.6.11-1.1369_FC4-i686/ /usr/src/linux

在进行编译就不会出错了

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一．配置基于DR模式Lvs集群

Load Balancer：172.18.3.208

[root@localhost lvs]# cat /usr/local/lvs/LvsDR 
#!/bin/sh

#VIP=192.168.8.11
 VIP=172.18.3.209

#RIP1=192.168.8.6
 RIP1=172.18.3.205

 RIP2=172.18.3.207

/etc/rc.d/init.d/functions

case "$1" in

start)

echo "start LVS of DirectorServer"

#Set the Virtual IP Address

/sbin/ifconfig eth0:1 $VIP broadcast $VIP netmask 255.255.255.255 up

/sbin/route add -host $VIP dev eth0:1

#Clear IPVS Table

/sbin/ipvsadm -C

#Set Lvs

/sbin/ipvsadm -A -t $VIP:80 -s rr 　　　　#rr 是使用了轮叫算法

/sbin/ipvsadm -a -t $VIP:80 -r $RIP1:80 -g

/sbin/ipvsadm -a -t $VIP:80 -r $RIP2:80 -g

#Run Lvs

/sbin/ipvsadm

;;

stop)

echo "close LVS Directorserver"

ifconfig eth0:1 down

/sbin/ipvsadm -C

;;

*)

echo "Usage: $0 {start|stop}"

exit 1

esac

=======================================

Real Server 1：172.18.3.205

[root@localhost lvs]# cat /usr/local/lvs/realserver 
#!/bin/sh

#VIP=192.168.8.11

 VIP=172.18.3.209

/sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up

/sbin/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

#:注释：这四句目的是为了关闭ARP广播响应

sysctl -p
================================================

 

Real Server 2：172.18.3.207

[root@localhost lvs]# cat /usr/local/lvs/realserver 
#!/bin/sh

#VIP=192.168.8.11

 VIP=172.18.3.209

/sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up

/sbin/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

sysctl -p

==================================

 

[root@localhost lvs]# echo "This is realserver1" > /usr/local/apache/htdocs/index.html
This is realserver1

[root@localhost lvs]#  echo "This is realserver2" > /usr/local/apache/htdocs/index.html
This is realserver2

分别启动服务

172.18.3.208  ./LvsDR start

172.18.3.205  ./realserver

172.18.3.207  ./realserver

 

启动apache

访问: http://172.18.3.209

测试方法分别打开四个网页，回轮循打开四个网页

This is realserver1        This is realserver2