KeepAlived双主配置

最新推荐文章于 2025-07-11 09:45:00 发布

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最新推荐文章于 2025-07-11 09:45:00 发布 · 568 阅读

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本文详细介绍了如何配置KeepAlived实现双主机高可用，包括环境规划、配置Keepalived及RS，以及客户端测试。配置后，当RS或Keepalived服务器挂掉时，VIP将自动漂移，确保服务连续性和可用性。

文章目录

环境规划

在这里插入图片描述

配置说明

Client的网关指向 192.168.1.4
RS，keepalived 网关指向 192.168.43.17
RS上安装 httpd服务，RS1，RS2的vip为 192.168.43.100，RS3，RS4的vip为 192.168.43.200
keepalived服务器上安装 keepalived服务，配置两个vip，192.168.43.100，192.168.43.200
路由器上开启路由转发的功能

keepalived 配置

安装keepalived软件包

yum install keepalived -y

配置文件
vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {
   notification_email {
     root@localhost
   }
   notification_email_from keepalived@localhost
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id keepalived-01   // keepalived-02
   vrrp_mcast_group4 224.100.100.100
}