centos7上keepalived的安装和配置方法

CentOS7上Keepalived的安装和配置方法

1、安装Keepalived

在CentOS7上安装Keepalived的步骤如下：

（1）首先，更新系统：

sudo yum update -y

（2）安装keepalived：

sudo yum install -y keepalived

2、配置Keepalived

（1）配置Keepalived的配置文件：

编辑/etc/keepalived/keepalived.conf文件，设置如下：

global_defs {

router_id LVS_DEVEL

}

vrrp_instance VI_1 {

state MASTER

interface eth0

virtual_router_id 51

priority 200

advert_int 1

authentication {

auth_type PASS

auth_pass 1111

}

virtual_ipaddress {

192.168.1.2

}

}

（2）启动Keepalived服务：

sudo systemctl start keepalived

（3）检查Keepalived服务是否正常运行：

sudo systemctl status keepalived

（4）设置Keepalived服务开机自启：

sudo systemctl enable keepalived

3、测试Keepalived

（1）查看虚拟IP地址：

ip addr

（2）查看路由表：

route -n

（3）查看VRRP状态：

cat /proc/net/vrrp

以上就是CentOS7上Keepalived的安装和配置方法。Keepalived是一款高可用性解决方案，可以实现虚拟IP地址的高可用性，可以有效提高网络的稳定性和可靠性。