LVS+Keepalived构建高可用负载均衡群集(DR)(3)

日期：2020-09-30 栏目：程序人生浏览：次

三、Realserver服务器上的配置（RHEL5）

提供服务的RealServer1和RealServer2不需要安装任何IPVS软件，只需要设置在开机后自动执行以下脚本：

1）在RealServer1上的设置

[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]

DEVICE=eth0

BOOTPROTO=static

HWADDR=00:0C:29:AB:B0:02

ONBOOT=yes

IPADDR=192.168.1.191

NETMASK=255.255.255.0

GATEWAY=192.168.1.1

2）编写lvs-dr脚本

[root@localhost ~]# vim /opt/lvs-dr

#!/bin/bash

vip="192.168.1.198"

/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

[root@localhost ~]# chmod +x /opt/lvs-dr //添加脚本lvs-dr的执行权限

[root@localhost ~]# echo "/opt/lvs-dr" >> /etc/rc.local //让脚本lvs-dr随机开机启动

[root@localhost ~]# /opt/lvs-dr //执行lvs-dr脚本

3）挂载光盘，YUM安装apache服务

[root@localhost ~]# mount /dev/cdrom /media/

mount: block device /dev/cdrom is write-protected, mounting read-only

[root@localhost ~]# vim /etc/yum.repos.d/rhel-debuginfo.repo

[rhel-debuginfo]

name=Red Hat Enterprise Linux $releasever - $basearch - Debug

baseurl=file:///media/Server

enabled=1

gpgcheck=0

[root@localhost ~]# yum -y install http*

[root@localhost opt]# echo "1111" > /var/www/html/index.html //在RealServer1添加测试页

[root@localhost opt]# service httpd restart

停止 httpd： [确定]

启动 httpd： [确定]

1）在RealServer2上的设置