在RedHat EL 4.0 中实现高可用WEB负载均衡群集

核心提示：一、Director配置 1、设置网络接口地址 [root @director root] # vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 BOOTPROTO=static BROADCAST=192.168.0.255 HWADDR=00:0C:2

一、Director配置

1、设置网络接口地址

[root @director root] # vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.0.255

HWADDR=00:0C:29:A2:BD:B5

IPADDR=192.168.0.160

NETMASK=255.255.255.0

NETWORK=192.168.0.0

ONBOOT=yes

2、编辑 lvs 脚本

[root @director root] # vi /etc/init.d/lvsdr

#!/bin/bash

VIP=192.168.0.222

RIP1=192.168.0.249

RIP2=192.168.0.251

/etc/rc.d/init.d/funcions

case "$1" in

start)

echo "start LVS of DirectorServer"

#Set the Virtual ip address

/sbin/ifconfig eth0:0 $VIP broadcast $VIP netmask 255.255.255.255 up

/sbin/route add -host $VIP dev eth0:0

# Clear ipvs Table

/sbin/ipvsadm -C

# set lvs

/sbin/ipvsadm -A -t $VIP:80 -s rr

/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 Directorsever"

/sbin/ipvsadm -C

/sbin/ifconfig eth0:0 down

;;

*)

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

exit 1

esac

# 保存并退出，将该文件设置为可执行文件

[root @director root] # chmod 755 /etc/init.d/lvsdr

3、安装 ipvsadm

[root @ Director root] # modprobe –l | grep ipvs