安装Keepalived和配置

安装依赖包：
yum install -y libnl*
yum install -y libnfnetlink-devel zlib zlib-devel gcc gcc-c++ openssl openssl-devel openssh

下载并解压Keepalived：
wget http://www.keepalived.org/software/keepalived-1.3.5.tar.gz
tar xvf keepalived-1.3.5.tar.gz

编译安装：
cd keepalived-1.3.5
./configure –prefix=/usr/local/keepalived –sysconf=/etc
make
make install

去 keepalived 源码目录下拷贝启动脚本到/etc/init.d/下：
cp /usr/local/softs/keepalived-1.3.5/keepalived/etc/init.d/keepalived /etc/init.d/keepalived

修改/etc/init.d/keepalived启动脚本：
vim /etc/init.d/keepalived

# Source configuration file (we set KEEPALIVED_OPTIONS there)
. /usr/local/keepalived/etc/sysconfig/keepalived

keepalived=/usr/local/keepalived/sbin/keepalived
keepalived_config=/usr/local/keepalived/etc/keepalived/keepalived.conf
keepalived_pid=/usr/local/keepalived/run/keepalived.pid

修改其权限并开机启动：
修改权限：chmod 755 /etc/init.d/keepalived
加为系统服务：chkconfig –add keepalived
开机启动：chkconfig keepalived on
查看开机启动的服务：chkconfig –list

备注：keepalived服务控制：
systemctl enable keepalived.service #设置开机自动启动
systemctl disable keepalived.service #取消开机自动启动
systemctl start keepalived.service #启动服务
systemctl restart keepalived.service #重启服务
systemctl stop keepalived.service #停止服务
systemctl status keepalived.service #查看服务状态