环境准备
服务器 192.168.10.30 192.168.10.31 192.168.10.204
服务器间免密登录(非必须)
ssh-keygen -t rsa
ssh-copy-id -i /root/.ssh/id_rsa.pub 192.168.10.31
ssh-copy-id -i /root/.ssh/id_rsa.pub 192.168.10.204
设置主机名 (环境配置及安装三台机器一样)
修改三台机器域名解析
vim /etc/hosts
192.168.10.30 db1
192.168.10.31 db2
192.168.10.204 db3
关闭防火墙 设置时间同步(环境配置及安装三台机器一样)
[root@localhost ~]# yum -y install ntp ntpdate ntp-doc && systemctl restart ntpd && systemctl enab