keepalived的安装

操作系统:CentOS Linux 7 (Core)
Kernel: Linux 3.10.0-327.el7.x86_64
安装方式1：
centos7自带的有keepalived的安装包，直接yum即可
yum install -y keepalived-1.2.13-7.el7.x86_64
安装方式2：
源码安装。自行选择keepalived的安装包版本。

    1：ln -s /usr/src/kernels/3.10.0-327.el7.x86_64/  /usr/src/linux/  #如果没有kernels这个目录。则需安装kernel-devel;如果不执行这一步，需要在编译的时候加入./configure --with-kernel-dir=/usr/src/kernels/内核版本    2：编译三部曲:./configrue  #这一步要出现3个yes                make&&make install

配置规范启动

1： cp /usr/local/etc/rc.d/keepalived /etc/init.d    ##生成启动脚本命令2：cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/    ##配置启动脚本的参数3：mkdir /etc/keepalived ##创建默认的keepalived配置文件路径4： cp /usr/local/etc/keepalived.conf /etc/keepalived    ##把keepalived.conf的模板拷贝到/etc/keepalived下5：cp /usr/local/sbin/keepalived /usr/sbin6: /etc/init.d/keepalived start 或者 /etc/init.d/keepalived stop