centos mysql 安装

关闭selinux vim /etc/selinux/config 设置selinux=disabled

setenforce 0

先下载rpm 比如mysql57-community-release-el7-8.noarch.rpm

rpm -ivh /usr/local/mysql57-community-release-el7-8.noarch.rpm

yum repolist enabled | grep mysql

安装之前需要 rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

yum install -y mysql-community-server

修改my.cnf

systemctl start mysqld

cat /var/log/mysqld.log | grep 'temporary password'

找到初始密码登录，修改密码

alter user root@localhost identified by 'xxxxxx';