LINUX配置keepalived服务

好的，以下是配置keepalived服务的步骤：

1. 安装keepalived

使用以下命令在Linux系统上安装keepalived：

sudo apt-get install keepalived

2. 配置keepalived

创建并编辑keepalived的主配置文件：

sudo nano /etc/keepalived/keepalived.conf

在该文件中，您需要设置以下内容：

- 全局配置

global_defs {
   router_id LVS_DEVEL
}

- 邮件通知

email_alert {
   email_from keepalived@mydomain.com
   email_to admin@mydomain.com
   smtp_server smtp.mydomain.com
   smtp_connect_timeout 30
}

- 虚拟IP

vrrp_instance VI_1 {
    interface eth0
    state MASTER
    virtual_router_id 51
    priority 101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.0.100/24 brd 192.168.0.255 dev eth0 label eth0:1
    }
}

在上面的示例中，我们定义了一个名为VI_1的虚拟路由实例，在eth0接口上使用VRRP协议。我们还定义了虚拟路由器ID、优先级、广告间隔和虚拟IP地址。

3. 启动keepalived

使用以下命令启动keepalived服务：

sudo systemctl start keepalived

4. 检查keepalived状态

使用以下命令检查keepalived服务的状态：

sudo systemctl status keepalived

如果服务正在运行，则会看到类似于以下输出：

● keepalived.service - Keepalive Daemon (LVS and VRRP)
   Loaded: loaded (/lib/systemd/system/keepalived.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2020-03-18 10:16:22 UTC; 17s ago
 Main PID: 2507 (keepalived)
    Tasks: 1 (limit: 1114)
   CGroup: /system.slice/keepalived.service
           └─2507 /usr/sbin/keepalived -D -P -C /etc/keepalived/keepalived.conf

以上就是配置keepalived服务的步骤，希望能对您有所帮助！