centos7安装mysql5.7

centos7安装mysql5.7

环境搭建、清理旧安装包

进入到目录 /usr/local/ 中

cd /usr/local/

创建目录 /usr/local/tools，如果有则忽略

mkdir -p tools

创建 /usr/local/mysql 目录，如果已存在则忽略

mkdir -p mysql

进入到目录 /usr/local/tools 中

cd tools/

查看系统中是否已安装 MySQL 服务

rpm -qa | grep mysql
或
yum list installed | grep mysql

如果已安装则删除 MySQL 及其依赖的包

yum -y remove mysql-libs.x86_64

安装yum源

wget http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm

rpm -ivh mysql57-community-release-el7-8.noarch.rpm

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

安装mysql-server

yum install mysql-server -y

启动mysqld

systemctl start mysqld && systemctl enable mysqld

获取mysql密码

grep 'temporary password' /var/log/mysqld.log
// 如果提示找不到密码，有可能是默认没有密码，直接回车即可登录mysql

登陆mysql修改密码

mysql -u root -p输入密码后登陆

然后修改密码

SET PASSWORD = PASSWORD('your new password');
// 或者ALTER USER 'root'@'localhost' IDENTIFIED BY '新的密码';

设置密码永不过期

ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER; 

刷新

 flush privileges;

设置root可远程连接

mysql -u root -p输入密码后登陆

use mysql;
select host, user from user;
update user set host = '%' where user = 'root';
select host, user from user;
flush privileges;

测试连接

学习链接

https://blog.csdn.net/ic_xcc/article/details/121425926

https://my.oschina.net/scottCoder/blog/857378#

https://blog.csdn.net/iiiiiilikangshuai/article/details/100905996

来源：https://www.cnblogs.com/rainbow-tan/p/17000424.html