环境:
主keepalived服务器:192.168.80.100
从keepalived服务器: 192.168.80.101
Web服务器:192.168.80.102
192.168.80.103
在80.100虚拟机上:
systemctl stop firewalld //关闭防火墙
setenforce 0 //关闭监控
yum install lrz* -y //安装上传软件
把keepalived包拉入
tar xf keepalived-1.4.2.tar.gz -C /opt/ //解压keepalived-1.4.2文件到/opt
cd /opt/keepalived-1.4.2/
yum install gcc gcc-c++ make popt-devel kernel-devel openssl-devel -y
./configure --prefix=/
make && make install
cd /
cd /etc/
ls | grep keepalived
cd keepalived/
vi keepalived.conf //进入keepalived删除所有内容并添加以下内容:
! Configuration File for keepalived
global_defs {
router_id LVS_01 //本服务器的名称
}
vrrp_instance VI_1 { //定义VRRP热备实例
state MASTER //热备状态,MASTER表示主服务器,BACKUP表示从服务器
interface ens32 //承载VIP地址的物理接口
virtual_router_id 51 //虚拟路由器的ID号,每个热备组保持一致
priority 110 //优先级,数值越大优先级越高
advert_int 1 //通告间隔秒数(心跳频率)
authentication { //热备认证信息,每个热备组保持一致
auth_type PASS //认证类型
auth_pass 6666 //密码字符串
}
virtual_ipaddress { //指定漂移地址(VIP),可以有多个
192.168.80.188
}
}
virtual_server 192.168.80.188 80 { //虚拟服务器地址(VIP)、端口
delay_loop 6 //健康检查的间隔时间(秒)
lb_algo rr //轮询(rr)调度算法
lb_kind DR //直接路由(DR)群集工作模式
persistence_timeout 60 //连接保持时间(秒)
protocol TCP //应用服务器采用的是TCP协议
real_server 192.168.80.102 80 { //第一个Web服务器节点的地址、端口
weight 1 //节点的权重
TCP_CHECK { //健康检查方式
connect_port 80 //检查的目标端口
connect_timeout 3 //连接超时(秒)
nb_get_retry 3 //连接超时(秒)
delay_before_retry 3 //重试间隔
}
}
real_server 192.168.80.103 80 { //第二个Web服务器节点的地址、端口
weight 1 //节点的权重
TCP_CHECK { //健康检查方式
connect_port 80 //检查的目标端口
connect_timeout 3 //连接超时(秒)
nb_get_retry 3 //连接超时(秒)
delay_before_retry 3 //重试间隔
}
}
}
:wq //保存退出
service keepalived start
systemctl status keepalived //查看keepalived状态
ip addr show dev ens32
modprobe ip_vs
yum install ipvsadm -y
service keepalived restart
ipvsadm -Ln //查看LVS虚拟服务器
在80.101虚拟机上:
systemctl stop firewalld //关闭防火墙
setenforce 0 //关闭监控
yum install lrz* -y //安装上传软件
把keepalived包拉入
tar xf keepalived-1.4.2.tar.gz -C /opt/ //解压keepalived-1.4.2文件到/opt
cd /opt/keepalived-1.4.2/
yum install gcc gcc-c++ make popt-devel kernel-devel openssl-devel -y
./configure --prefix=/
make && make install
modprobe ip_vs
yum install ipvsadm -y
vi /etc/keepalived/keepalived.conf //删除所有内容并添加以下内容:
! Configuration File for keepalived
global_defs {
router_id LVS_02
}
vrrp_instance VI_1 {
state BACKUP
interface ens32
virtual_router_id 51
priority 105
advert_int 1
authentication {
auth_type PASS
auth_pass 6666
}
virtual_ipaddress {
192.168.80.188
}
}
virtual_server 192.168.80.188 80 {
delay_loop 6
lb_algo rr
lb_kind DR
persistence_timeout 60
protocol TCP
real_server 192.168.80.102 80 {
weight 1
TCP_CHECK {
connect_port 80
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
real_server 192.168.80.103 80 {
weight 1
TCP_CHECK {
connect_port 80
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
}
}
}
:wq //保存退出
service keepalived start
systemctl status keepalived //查看keepalived状态
————————————————————————————
在80.102虚拟机上:
systemctl stop firewalld
setenforce 0
yum install httpd -y //安装httpd
vi /etc/httpd/conf/httpd.conf
ServerName www.example.com.80 前面的#去掉
cd /var/www/html/ //进入目录
echo "<h2>SERVER AA</h2>" > index.html //在index.html添加内容
ls
cat index.html
systemctl start httpd
cd
ls
./web.sh
ifconfig //查找IP地址
在虚拟机80.103上:
systemctl stop firewalld
setenforce 0
yum install httpd -y //安装httpd
vi /etc/httpd/conf/httpd.conf
ServerName www.example.com.80 前面的#去掉
cd /var/www/html/ //进入目录
echo "<h2>SERVER BB</h2>" > index.html //在index.html添加内容
ls
cat index.html
systemctl start httpd
vi web.sh
里面添加以下内容
#!/bin/bash
#haha
ifconfig lo:0 192.168.80.188 broadcast 192.168.80.188 netmask 255.255.255.255 up
route add -host 192.168.80.188 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
:wq //保存退出
chmod +x web.sh //设置权限
./web.sh
ifconfig //查找IP地址
scp web.sh root@192.168.80.102:/root/ //把地址传送过去
yes
root密码
网页上输入http:192.168.80.188
在80.103中
systemctl stop httpd //关闭httpd
在页面上刷新成下面情况:
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