配置 Keepalived 主備

1. 通過命令vim keepalived.conf開啟配置檔案

global_defs 

vrrp_instance vi_1 
# 虛擬出來的ip，可以有多個（vip）
virtual_ipaddress 
}

2. 啟動 keepalived

在sbin目錄中進行啟動（同nginx），如下圖：

3. 檢視程序

4. 檢視vip

在網絡卡ens33下，多了乙個192.168.1.161，這個就是虛擬ip

備用節點：

1. 通過命令vim keepalived.conf開啟配置檔案

global_defs 

vrrp_instance vi_1 
virtual_ipaddress 
}

# 啟動keepalived

systemctl start keepalived
# 停止keepalived
systemctl stop keepalived
# 重啟keepalived
systemctl restart keepalived

規則：以乙個虛擬ip分組歸為同乙個路由

主節點配置：

global_defs 

vrrp_instance vi_1 
virtual_ipaddress 
}vrrp_instance vi_2 
virtual_ipaddress 
}

global_defs 

vrrp_instance vi_1 
virtual_ipaddress 
}vrrp_instance vi_2 
virtual_ipaddress 
}

# 重啟keepalived

systemctl restart keepalived

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