18.1 集群介绍 18.2 keepalived介绍 18.3/18.4/18.5 用keepal

Posted 2020-10-30

集群介绍

keepalived介绍

用keepalived配置高可用集群

主上Master配置
[[email protected] ~]# yum install -y keepalived


iptables -nvL 查看防火墙

主从Backup配置
[[email protected] ~]# yum install -y keepalived
[[email protected] ~]# service nginx start
Redirecting to /bin/systemctl start nginx.service
Failed to start nginx.service: Unit not found.
[[email protected] ~]# yum install -y nginx
已加载插件：fastestmirror
Loading mirror speeds from cached hostfile

• base: centos.ustc.edu.cn
• extras: centos.ustc.edu.cn
• updates: mirrors.cn99.com
  没有可用软件包 nginx。
  缺少 epel-release 包
  [[email protected] ~]# yum -y install epel-release
  
  
  
  
  
  
  
  
  
  
  systemctl start keepalived