Centos7 安裝mysql詳細步驟

0 yum list 

1 yum -y install wget

2 wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm

3 yum -y install mysql57-community-release-el7-10.noarch.rpm 

4 yum -y install mysql-community-server

5 service mysqld start

6 netstat -nltp | grep  3306

7 grep "password" /var/log/mysqld.log   查看原始密碼

grep 'password' /var/log/mysqld.log   
2020-06-24T07:21:25.731630Z 1 [Note] A temporary password is generated for root@localhost: Apd>;WYEc2Ir
2020-06-24T07:21:48.097350Z 2 [Note] Access denied for user 'root'@'localhost' (using password: NO)

8 登錄  mysql -uroot -pWYEc2Ir

9 修改密碼

mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;   這個兩個設置以後 密碼很簡單不會報錯

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