mysql怎么重建本地用户及远程用户
这篇文章主要介绍“MySQL怎么重建本地用户及远程用户”,在日常操作中,相信很多人在mysql怎么重建本地用户及远程用户问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”mysql怎么重建本地用户及远程用户”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
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一、模拟删除破坏用户:
laojiang:~ # mysql -uroot -proot
mysql> use mysql;
mysql> select user,host from user;
+----------+------------+
| user | host |
+----------+------------+
| laojiang | % |
| laojiang | 127.0.0.1 |
| root | 127.0.0.1 |
| root | ::1 |
| root | laojiang |
| laojiang | localhost |
| root | localhost |
| laojiang | laojiang |
+----------+------------+
8 rows in set (0.00 sec)
mysql> delete from user where user='root';
Query OK, 4 rows affected (0.00 sec)
mysql> select user,host from user;
+----------+-----------+
| user | host |
+----------+-----------+
| laojiang | % |
| laojiang | 127.0.0.1 |
| laojiang | localhost |
| laojiang | laojiang |
+----------+-----------+
4 rows in set (0.00 sec)
mysql>
laojiang:~ # service mysql restart
Shutting down MySQL.. done
Starting MySQL. done
laojiang:~ # mysql -uroot -proot
Warning: Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
laojiang:~ #
二、重建本地用户:
laojiang:/etc # vi my.cnf
[mysqld]
skip-grant-tables
laojiang:~ # service mysql restart
Shutting down MySQL.. done
Starting MySQL.
laojiang:~ # mysql -uroot -p
Enter password:
mysql> insert into mysql.user (host, user, password,ssl_cipher,x509_issuer,x509_subject) values ('localhost', 'root', password('root'),'','','');
Query OK, 1 row affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> grant all privileges on *.* to 'root'@'localhost' identified by 'root' with grant option;
Query OK, 0 rows affected (0.00 sec)
mysql>
laojiang:/etc # vi my.cnf
[mysqld]
#skip-grant-tables
laojiang:~ # service mysql restart
Shutting down MySQL.. done
Starting MySQL. done
三、通过本地用户重建远程用户:
laojiang:~ # mysql -uroot -proot
mysql> select user,host from mysql.user;
+----------+-----------+
| user | host |
+----------+-----------+
| laojiang | % |
| laojiang | 127.0.0.1 |
| laojiang | localhost |
| root | localhost |
| laojiang | laojiang |
+----------+-----------+
5 rows in set (0.00 sec)
mysql> grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;
Query OK, 0 rows affected (0.00 sec)
mysql> select user,host from mysql.user;
+----------+-----------+
| user | host |
+----------+-----------+
| laojiang | % |
| root | % |
| laojiang | 127.0.0.1 |
| laojiang | localhost |
| root | localhost |
| laojiang | laojiang |
+----------+-----------+
6 rows in set (0.00 sec)
mysql>
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