标签：stop ror 用户名 and note restart container span art
1.先检查系统是否装有mysql
rpm -qa | grep mysql
2.下载mysql的repo源
wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
3.安装 mysql-community-release-el7-5.noarch.rpm包
sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm
4.安装MySQL
sudo yum install mysql-server
5.重置MySQL密码
mysql -u root
如果报错：
ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock‘ (2)
原因：原因是/var/lib/mysql的访问权限问题。
chown root /var/lib/mysql/
重启MySQL服务
service mysqld restart
接着登陆设置密码
mysql -u root
use mysql;
update user set password=password(‘123456‘) where user=‘root‘;
exit;
6.重启MySQL服务
service mysqld restart
接着设置Root账户远程连接密码，账户和密码都是 root
mysql -u root -p
GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";
重启服务器
service mysqld restart
7.使用外网工具连接MySQL
连接mysql的用户名和密码都是 root
关闭防火墙
systemctl stop firewalld.service
下面为另一种办法，但是，测试没有成功
连接MySQL服务器，修改密码
1）查看初始密码
- [root@host50 ~]#grep –i ‘password‘ /var/log/mysqld.log
- 2017-04-01T18:10:42.948679Z 1 [Note] A temporary password is generated for root@localhost: mtoa>Av<p6Yk
2）使用初始密码连接mysql服务
- [root@host50 ~]# mysql -u root -p‘mtoa>Av<p6Yk‘
- mysql: [Warning] Using a password on the command line interface can be insecure.
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 11
- Server version: 5.7.17
- Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
- Oracle is a registered trademark of Oracle Corporation and/or its
- affiliates. Other names may be trademarks of their respective
- owners.
- Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
- mysql>
3）重置数据库管理员roo本机登录密码
- mysql> show databases;
- ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement
- mysql> alter user root@”localhost” identified by "123qqq…A";
- Query OK, 0 rows affected (0.00 sec)
- mysql> exit
- [root@host50 ~]#
4）修改密码策略
- [root@host50 ~]# mysql -uroot –p123qqq…A
- mysql>
- mysql>set global validate_password_policy=0;
- Query OK, 0 rows affected (0.00 sec)
- mysql>set global validate_password_length=6；
- Query OK, 0 rows affected (0.00 sec)
- mysql> alter user root@”localhost” identified by "tarena";
- Query OK, 0 rows affected (0.00 sec)
- mysql>exit
5）使用修改后的密码登录
- [root@host50 ~]# mysql -uroot -ptarena
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 15
- Server version: 5.7.17 MySQL Community Server (GPL)
- Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
- Oracle is a registered trademark of Oracle Corporation and/or its
- affiliates. Other names may be trademarks of their respective
- owners.
- mysql> show databases;
- +--------------------+
- | Database |
- +--------------------+
- | information_schema |
- | mysql |
- | performance_schema |
- | sys |
- +--------------------+
- 4 rows in set (0.00 sec)
- mysql>
CentOS7位安装MySql教程
标签：stop ror 用户名 and note restart container span art
原文地址：https://www.cnblogs.com/wwtao/p/11572296.html
