準備兩台虛擬機器
192.168.80.100 主伺服器
192.168.80.102 備份伺服器
在80.100虛擬機器上
systemctl stop firewalld //關閉防火牆
setenforce 0 //關閉selinux
1、 keepalived軟體安裝
yum install keepalived -y
/etc/keepalived/keepalived.conf #keepalived服務主配置檔案
/etc/rc.d/init.d/keepalived #服務啟動指令碼
2、配置檔案說明
1-13行表示全域性配置
global_defs
notification_email_from [email protected] #定義傳送郵件的位址
smtp_server 192.168.200.1 #郵箱伺服器
smtp_connect_timeout 30 #定義超時時間
router_id lvs_devel #定義路由標識資訊，相同區域網唯一
}15-30行 虛擬ip配置 brrp
keepalived熱備份（雙機熱備）
主keepalived伺服器:192.168.80.100
備keepalived伺服器:192.168.80.102
將裡面的內容全部刪除
更改為如下：
! configuration file for keepalived
global_defs
vrrp_instance vi_1
virtual_ipaddress
}
systemctl start keepalived //啟動keepalived
systemctl status keepalived //檢視狀態
ip addr show ens32 //檢視ens32網絡卡
在192.168.80.102的虛擬機上安裝keepalived
yum install keepalived -y
vi /etc/keepalived/keepalived.conf //keepalived服務主配置檔案
將裡面的內容全部刪除
更改為如下：
!onfiguration file for keepalived
global_defs
vrrp_instance vi_1
virtual_ipaddress
}
service keepalived stop //關閉80.100主配置檔案keepalived
ip addr show ens32 //檢視ens32網絡卡
然後去80.102檢視
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