Linux 之 CentOS 7安装MySQL5.7

Linux 之 CentOS 7安装MySQL5.7

1.下载MySQL yum 包

wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm

2.安装MySQL源

rpm -Uvh mysql57-community-release-el7-10.noarch.rpm

3.安装MySQL服务端

yum install -y mysql-community-server

4.启动MySQL

systemctl start mysqld.service

5.检查是否启动成功

systemctl status mysqld.service

6.获取临时密码

mysql5.7为root用户随机生成了一个密码

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

7.登录mysql，修改密码

mysql -uroot -p

8.修改密码

更改密码规则

mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;

设置密码

ALTER USER 'root'@'localhost' IDENTIFIED BY 'yourpassword';

9.开启远程连接

mysql> use mysql;
#%代表所有连接
mysql> update user set Host = '%' where Host = 'localhost' and User='root';
#刷新权限表
mysql> flush privileges;

 10.开启开机自启

一般默认自启

systemctl enable mysqld
systemctl daemon-reload

11.设置字符集

打开配置文件

vim /etc/my.cnf

改成如下

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
 
[mysql]
default-character-set=utf8
 
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
default-storage-engine=INNODB
character_set_server=utf8
 
symbolic-links=0
 
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

重启mysql，使配置生效

service mysqld restart

12.放行3306端口

#放行3306端口
firewall-cmd --zone=public --add-port=3306/tcp --permanent
#重启防火墙
firewall-cmd --reload

13.卸载mysql仓库

14.navicat连接测试

 使用navicat创建数据库，创建表，添加数据。服务端测试查询