這篇文章主要介紹“MySQL怎么重建本地用戶及遠(yuǎn)程用戶”，在日常操作中，相信很多人在mysql怎么重建本地用戶及遠(yuǎn)程用戶問題上存在疑惑，小編查閱了各式資料，整理出簡(jiǎn)單好用的操作方法，希望對(duì)大家解答”mysql怎么重建本地用戶及遠(yuǎn)程用戶”的疑惑有所幫助！接下來，請(qǐng)跟著小編一起來學(xué)習(xí)吧！

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一、模擬刪除破壞用戶：
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、重建本地用戶：
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、通過本地用戶重建遠(yuǎn)程用戶：
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>

到此，關(guān)于“mysql怎么重建本地用戶及遠(yuǎn)程用戶”的學(xué)習(xí)就結(jié)束了，希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí)，快去試試吧！若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí)，請(qǐng)繼續(xù)關(guān)注創(chuàng)新互聯(lián)網(wǎng)站，小編會(huì)繼續(xù)努力為大家?guī)砀鄬?shí)用的文章！

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