目录
1、系统要求
1.1、RedHat版本
2、软件要求
2.1、Keepalived版本
3、安装步骤
3.1、在线
3.1.1、安装
3.1.2、配置
3.1.3、启动
3.1.4、停止
3.2、手动
3.2.1、从官网下载keepalived安装包
3.2.2、上传或下载keepalived
3.2.3、解压安装
3.2.4、将keepalived安装成Linux系统服务
3.2.5、设置keepalived服务开机启动
3.2.6、修改Keepalived配置文件
3.2.7、启动Keepalived
3.2.8、停止Keepalived
4、应用
4.1、Keepalived + Nginx
4.2、其他
1、系统要求
1.1、RedHat版本
系统版本：7.6
备注：系统版本>=7.6
2、软件要求
2.1、Keepalived版本
软件版本：2.2.8
备注：软件版本>=2.2.8
3、安装步骤
3.1、在线
3.1.1、安装
yum install keepalived --y
3.1.2、配置
vi /etc/keepalived/
备注：可根据需要进行配置
3.1.3、启动
systemctl start
3.1.4、停止
systemctl stop
3.2、手动
3.2.1、从官网下载keepalived安装包
Keepalived for Linux
3.2.2、上传或下载keepalived
上传或下载keepalived（keepalived-2.2.）到/usr/local/soft目录
3.2.3、解压安装
cd /usr/local/soft
tar -zxvf keepalived-2.2.
cd keepalived-2.2.8
./configure --prefix=/usr/local/keepalived
make && make install
3.2.4、将keepalived安装成Linux系统服务
mkdir /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/ /etc/keepalived/
cp /usr/local/keepalived/etc///keepalived /etc//
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
ln -s /usr/local/sbin/keepalived /usr/sbin/
ln -s /usr/local/keepalived/sbin/keepalived /sbin/
3.2.5、设置keepalived服务开机启动
chkconfig keepalived on
3.2.6、修改Keepalived配置文件
vi /etc/keepalived/
备注：可根据需要进行配置
3.2.7、启动Keepalived
service keepalived start
3.2.8、停止Keepalived
service keepalived stop
4、应用
4.1、Keepalived + Nginx
如：使用Keepalived + Nginx实现高可用Web负载均衡，具体配置略。
4.2、其他
略。