Keepalived

安装

yum install -y keepalived

systemctl status keepalived

配置文件:

vim /etc/keepalived/keepalived.conf

机器1 master 配置:

vrrp_instance VI_1 {
        state MASTER
        interface eth1
        virtual_router_id 51
        priority 255
        advert_int 1
        authentication {
              auth_type PASS
              auth_pass 12345
        }
        virtual_ipaddress {
              192.168.122.200/24
        }
}

机器2 backup配置:

vrrp_instance VI_1 {
        state BACKUP
        interface eth1
        virtual_router_id 51
        priority 254
        advert_int 1
        authentication {
              auth_type PASS
              auth_pass 12345
        }
        virtual_ipaddress {
              192.168.122.200/24
        }
}

查看ip状态:

ip -brief address show