CentOS 7 安装MySQL服务：

wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpmsudo rpm -ivh mysql57-community-release-el7-9.noarch.rpmsudo yum install mysql-server

启动MySQL服务：

sudo systemctl start mysqldsudo systemctl status mysqld

启动时的临时密码：

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

 

修改密码：

MySQL 5.7.6及以上版本:

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

MySQL 5.7.5及以下版本:

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('MyNewPass');

 

忘记密码后重置密码：

1．修改MySQL的登录设置：    # vim  /etc/my.cnf     在[mysqld]的段中加上一句：skip-grant-tables     例如：    [mysqld]     datadir=/var/lib/mysql     socket=/var/lib/mysql/mysql.sock     skip-grant-tables     保存并且退出2、重新启动mysql    service mysql restart3、登录并修改登录密码    #mysql    #use mysql    update user set Password=password('密码') where  user='root' ;    quit;4、强配置改回来   去掉 skip-grant-tables 5、重新启动mysql    service mysql restart

 

 

CentOS 7 Python安装MySQLdb模块：

sudo yum install mysql mysql-devel mysql-libsudo yum install MySQL-pythonpip install mysql-python

 

参考：

https://www.digitalocean.com/community/tutorials/how-to-install-mysql-on-centos-7

https://stackoverflow.com/questions/4380931/installing-mysql-python-on-centos

https://my.oschina.net/u/2297737/blog/688214