双机热备 之 自动切换 keepalived

#安装依赖

yum -y install gcc openssl openssl-devel pcre  wget

 #安装keepalived

wget http://www.keepalived.org/software/keepalived-1.2.18.tar.gz

tar -zxvf keepalived-1.2.18.tar.gz

cd keepalived-1.2.18

./configure

make

make install

 

安装完成后两台机器配置文件：

vi  /usr/local/etc/keepalived/keepalived.conf

 

 

 

 

 

：

 

cp /usr/local/sbin/keepalived               /usr/sbin/

 

cp /usr/local/etc/rc.d/init.d/keepalived  /etc/init.d/ #此条无效 

 

cp /usr/local/etc/sysconfig/keepalived  /etc/sysconfig/  

 

cp -r /usr/local/etc/keepalived/            /etc/

 

systemctl enable keepalived

 

开启心跳

systemctl start keepalived

 

 

 

关闭防火墙（不必要）

 systemctl stop  firewalld

修改配置文件

vi /etc/keepalived/keepalived.conf

 

开机自启

chkconfig keepalived on