1安装环境
yum -y install kernel-devel*
yum -y install openssl-*
yum -y install popt-devel
yum -y install lrzsz
yum -y install openssh-clients
yum -y install libnl libnl-devel popt
2安装keepalived
（1）将keepalived-1.2.15.tar.gz上传到服务器/usr/local/下 解压
tar zxvf keepalived-1.2.15.tar.gz
（2）进入keepalived目录
cd keepalived-1.2.15
（3）执行配置命令
./configure --prefix=/usr/local/keepalived
（4）编译
make
（5）安装
make install
（6）拷贝执行文件
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
（7）将init.d文件拷贝到etc下,加入开机启动项
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/keepalived
（8）将keepalived文件拷贝到etc下，加入网卡配置
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
（9）创建keepalived文件夹
mkdir -p /etc/keepalived
（10）将keepalived配置文件拷贝到etc下
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf
（11）添加可执行权限
chmod +x /etc/init.d/keepalived
3.加入开机启动
chkconfig --add keepalived #添加时必须保证/etc/init.d/keepalived存在
chkconfig keepalived on
添加完可查询系统服务是否存在：
chkconfig --list
4启动keepalived
启动：service keepalived start
停止：service keepalived stop
重启：service keepalived restart
5.配置keepalived 日志文件存放地址
默认日志存放在系统日志：/var/log/messages下
把日志单独存放
修改/etc/sysconfig/keepalived
把KEEPALIVED_OPTIONS="-D" 修改为：KEEPALIVED_OPTIONS="-D -d -S 0"
vim /etc/sysconfig/keepalived
在rsyslog.conf文件中最后加入local0.* /var/log/keepalived.log
vim /etc/rsyslog.conf
6.重新启动keepalived和rsyslog服务：
service rsyslog restart
service keepalived restart