centos7.2安装mysql

Step1.检测系统是否安装mysql

yum list installed | grep mysql

Step2.删除系统自带的mysql及其依赖

yum -y remove xxxxxx

Step3.安装Yum Repo

#  由于CentOS 的yum源中没有mysql，需要到mysql的官网下载yum repo配置文件
wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
rpm -ivh mysql57-community-release-el7-9.noarch.rpm

Step4.安装MySQL

yum install mysql-server

Step5.启动msyql

systemctl start mysqld

Step6.获取安装时的临时密码

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

Step7.登录成功后修改密码

mysql -u root -p
set password=password("newpassword");
exit;

Step8.设置安全选项

mysql_secure_installation

Step9.mysql启动关闭命令

systemctl stop mysqld #关闭MySQL
systemctl restart mysqld #重启MySQL
systemctl status mysqld #查看MySQL运行状态
systemctl enable mysqld #设置开机启动
systemctl disable mysqld #关闭开机启动

Step10.开启远程控制

# 数据库名.表名 如果写成*.*代表授权所有的数据库
grant all privileges on 数据库名.表名 to 创建的用户名(root)@"%" identified by "密码"; 
例如： grant all privileges on *.* to [email protected]"113.64.243.2" identified by "123456789";
#刷新刚才的内容
flush privileges; 

Step11.配置默认编码为utf8

vi /etc/my.cnf
#添加
[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'

Step12.其他默认配置文件路径

配置文件：/etc/my.cnf
日志文件：/var/log//var/log/mysqld.log
服务启动脚本：/usr/lib/systemd/system/mysqld.service
socket文件：/var/run/mysqld/mysqld.pid
数据文件： /var/lib/mysql

参考博客：https://blog.csdn.net/u010375456/article/details/90313296