[root@localhost~]# uname -r  #查看linux内核版本  
2.6.32-573.el6.x86_64
[root@localhost~]# lsmod | grep ip_vs
[root@localhost~]#

[root@localhost~]#wget http://www.linuxvirtualserver.org/software/kernel-2.6/ipvsadm-1.26.tar.gz

[root@localhost~]#yum install -y gcc gcc-c++ makepcre pcre-devel kernel-devel openssl-devel libnl-devel popt-devel popt-static
[root@localhost~]tar -zxvf ipvsadm-1.26.tar.gz
[root@localhost~]cd ipvsadm-1.26
[root@localhostipvsadm-1.26]make && make install
[root@localhostipvsadm-1.26]# ipvsadm #执行ipvsadm命令，把LVS添加到linux内核中
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
[root@localhostipvsadm-1.26]# lsmod | grep ip_vs #查看LVS是否已经添加到linux内核了，如果有如下输出表示已经成功。   
ip_vs                 126534  0 
libcrc32c               1246  1 ip_vs
ipv6                  335589  39 ip_vs,cnic,ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6

wget http://www.keepalived.org/software/keepalived-1.3.5.tar.gz
tar -zxvf keepalived-1.3.5.tar.gz
cd  keepalived-1.3.5
./configure --prefix=/usr/local/keepalived #error: libnfnetlink headers missing
安装yum install -y libnfnetlink-devel
make && make install

将keepalived配置成系统服务 
```php
mkdir /etc/keepalived/

cp -r  /usr/local/keepalived/etc/keepalived/*  /etc/keepalived/
cp /usr/local/keepalived/etc/sysconfig/keepalived  /etc/sysconfig/
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
cp /root/ipvsadm-1.26/keepalived-1.3.5/keepalived/etc/init.d/keepalived /etc/init.d/   #这文件在解压目录下面

vi /etc/keepalived/keepalived.conf
! Configuration File forkeepalived
global_defs {
notification_email {
test@sina.com            #故障接受联系人
 }
notification_email_from admin@test.com   #故障发送人
smtp_server 127.0.0.1    #本机发送邮件
smtp_connect_timeout 30
router_id LVS_MASTER     #BACKUP上修改为LVS_BACKUP
 }
vrrp_instance VI_1 {
state MASTER             #BACKUP上修改为BACKUP
interface eth0
virtual_router_id 51     #虚拟路由标识，主从相同
priority 100             #BACKUP上修改为90
advert_int 1
authentication {
auth_type PASS
auth_pass 1111           #主从认证密码必须一致
 }
virtual_ipaddress {      #Web虚拟IP（VTP）
172.16.0.10
  }
 }
virtual_server 172.16.0.10 80 { #定义虚拟IP和端口
delay_loop 6    #检查真实服务器时间，单位秒
lb_algo rr      #设置负载调度算法，rr为轮训
lb_kind DR      #设置LVS负载均衡DR模式
persistence_timeout 50 #同一IP的连接60秒内被分配到同一台真实服务器
protocol TCP    #使用TCP协议检查realserver状态
real_server 172.16.0.13 80 {  #第一个web服务器
weight 3          #节点权重值
TCP_CHECK {       #健康检查方式
connect_timeout 3 #连接超时
nb_get_retry 3    #重试次数
delay_before_retry 3  #重试间隔/S
  }
}
real_server 172.16.0.14 80 {  #第二个web服务器
weight 3
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
     }
  }
}