Linux伺服器—mysql忘記密碼
mysql忘記root密碼
如果不小心忘記了root密碼,那麼mysql就不能再登入了,這時就要重置root密碼才行。通過下面的步驟,我們可以重新設定root密碼。
1、退出mysql
[root@localhost src]# service mysqld stop
停止 mysqld: [確定]
[root@localhost src]#
2、進入sql安全模式,命令“/usr/bin/mysqld_safe –skip-grant-table &”
[root@localhost src]# /usr/bin/mysqld_safe –skip-grant-table &
[1] 6332
[root@localhost src]# 180814 10:10:00 mysqld_safe Logging to `/var/log/mysqld.log`.
180814 10:10:00 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
3、無密碼方式登入,命令“mysql –u root”
[root@localhost src]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.1.71 Source distribution
Copyright (c) 2000, 2013, 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>
4、使用mysql,命令“use mysql;”
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql>
5、重設root密碼,命令“update user set password=password (“密碼”) where user=’root’”
mysql> update user set password=password(`123456`) where user=`root`;
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
mysql>
6、重新整理
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
7、退出,重新登入
[root@localhost src]# mysql -u root -p
Enter password: //這裡輸入新密碼
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 2
Sever version: 5.1.71 Source distribution
Copyright (c) 2000, 2013, 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>
如果不小心忘記了root密碼,那麼mysql就不能再登入了,這時就要重置root密碼才行。通過下面的步驟,我們可以重新設定root密碼。
1、退出mysql
[root@localhost src]# service mysqld stop
停止 mysqld: [確定]
[root@localhost src]#
2、進入sql安全模式,命令“/usr/bin/mysqld_safe –skip-grant-table &”
[root@localhost src]# /usr/bin/mysqld_safe –skip-grant-table &
[1] 6332
[root@localhost src]# 180814 10:10:00 mysqld_safe Logging to `/var/log/mysqld.log`.
180814 10:10:00 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
3、無密碼方式登入,命令“mysql –u root”
[root@localhost src]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.1.71 Source distribution
Copyright (c) 2000, 2013, 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>
4、使用mysql,命令“use mysql;”
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql>
5、重設root密碼,命令“update user set password=password (“密碼”) where user=’root’”
mysql> update user set password=password(`123456`) where user=`root`;
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
mysql>
6、重新整理
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
7、退出,重新登入
[root@localhost src]# mysql -u root -p
Enter password: //這裡輸入新密碼
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 2
Sever version: 5.1.71 Source distribution
Copyright (c) 2000, 2013, 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>
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