跳過授權(quán)表登錄后使用replaceinto創(chuàng)建root權(quán)限用戶

起因：

十年的新賓網(wǎng)站建設(shè)經(jīng)驗，針對設(shè)計、前端、開發(fā)、售后、文案、推廣等六對一服務(wù)，響應(yīng)快，48小時及時工作處理。全網(wǎng)整合營銷推廣的優(yōu)勢是能夠根據(jù)用戶設(shè)備顯示端的尺寸不同，自動調(diào)整新賓建站的顯示方式，使網(wǎng)站能夠適用不同顯示終端，在瀏覽器中調(diào)整網(wǎng)站的寬度，無論在任何一種瀏覽器上瀏覽網(wǎng)站，都能展現(xiàn)優(yōu)雅布局與設(shè)計，從而大程度地提升瀏覽體驗。創(chuàng)新互聯(lián)從事“新賓網(wǎng)站設(shè)計”,“新賓網(wǎng)站推廣”以來，每個客戶項目都認真落實執(zhí)行。

剛剛搭建好的MySQL數(shù)據(jù)庫，做基礎(chǔ)優(yōu)化時，不小心把所有用戶都刪除了，并且退出了。沒辦法，只好跳過授權(quán)表登錄，新建root用戶。

過程如下：

一、停掉mysql，跳過授權(quán)登錄

[root@explnk-zabbix zabbix-2.2.9]# /etc/init.d/mysqld stop

Shutting down MySQL... SUCCESS!

[root@explnk-zabbix zabbix-2.2.9]# mysqld_safe --skip-grant-table &

[1] 30178

[root@explnk-zabbix zabbix-2.2.9]# 160418 10:49:54 mysqld_safe Logging to '/application/mysql/data/explnk-zabbix.err'.

160418 10:49:54 mysqld_safe Starting mysqld daemon with databases from /application/mysql/data

[root@explnk-zabbix zabbix-2.2.9]# mysql

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.5.32 MySQL Community Server (GPL)

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>

二、創(chuàng)建擁有root權(quán)限的用戶

2.1 錯誤例子：

這里最開始遇到個坑，使用insert into創(chuàng)建的用戶沒有任何權(quán)限，登錄之后無法進行操作，語句如下：

INSERT INTO user (Host,User,Password) VALUES('localhost','root',PASSWORD('biscuit'));

*************************** 2. row ***************************

Host: localhost

User: root

Password: *7495041D24E489A0096DCFA036B166446FDDD992

Select_priv: N

Insert_priv: N

Update_priv: N

Delete_priv: N

Create_priv: N

Drop_priv: N

Reload_priv: N

Shutdown_priv: N

Process_priv: N

File_priv: N

Grant_priv: N

References_priv: N

Index_priv: N

Alter_priv: N

Show_db_priv: N

Super_priv: N

Create_tmp_table_priv: N

Lock_tables_priv: N

Execute_priv: N

Repl_slave_priv: N

Repl_client_priv: N

Create_view_priv: N

Show_view_priv: N

Create_routine_priv: N

Alter_routine_priv: N

Create_user_priv: N

Event_priv: N

Trigger_priv: N

Create_tablespace_priv: N

ssl_type:

ssl_cipher:

x509_issuer:

x509_subject:

max_questions: 0

max_updates: 0

max_connections: 0

max_user_connections: 0

plugin:

authentication_string: NULL

2.2 正確方法1：

mysql> use mysql

Database changed

mysql> insert into user (Select_priv, Insert_priv, Update_priv, Delete_priv, Create_priv, Drop_priv, Reload_priv, Shutdown_priv, Process_priv, File_priv, Grant_priv, References_priv, Index_priv, Alter_priv, Show_db_priv, Super_priv, Create_tmp_table_priv, Lock_tables_priv, Execute_priv, Repl_slave_priv, Repl_client_priv, Create_view_priv, Show_view_priv, Create_routine_priv, Alter_routine_priv, Create_user_priv, Event_priv, Trigger_priv,Create_tablespace_priv,User,Password) values ( 'Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','gl','gl');

Query OK, 1 row affected, 3 warnings (0.06 sec)

mysql> update user set password=PASSWORD('explink') where user='gl';

Query OK, 1 row affected (0.08 sec)

Rows matched: 1 Changed: 1 Warnings: 0

2.3 正確方法2：

跳過授權(quán)表登錄后是無法使用grant建立用戶的，報錯如下：

mysql> grant all privileges on *.* to liang@'localhost' identified by '123456' with grant option;

ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement

解決辦法：

只要刷新一下用戶權(quán)限即可

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql> grant all privileges on *.* to liang@'localhost' identified by '123456' with grant option;

Query OK, 0 rows affected (0.00 sec)

三、退出登錄并重新啟動mysql

[root@explnk-zabbix zabbix-2.2.9]# /etc/init.d/mysqld stop

[root@explnk-zabbix zabbix-2.2.9]# /etc/init.d/mysqld start

四、登錄mysql查看權(quán)限

[root@explnk-zabbix zabbix-2.2.9]# mysql -ugl -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.5.32 MySQL Community Server (GPL)

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> select * from mysql.user\G

*************************** 3. row ***************************

Host:

User: gl

Password: *5F70B50879BD3B98CB5A945D3A6A7C92F41B8AE8

Select_priv: Y

Insert_priv: Y

Update_priv: Y

Delete_priv: Y

Create_priv: Y

Drop_priv: Y

Reload_priv: Y

Shutdown_priv: Y

Process_priv: Y

File_priv: Y

Grant_priv: Y

References_priv: Y

Index_priv: Y

Alter_priv: Y

Show_db_priv: Y

Super_priv: Y

Create_tmp_table_priv: Y

Lock_tables_priv: Y

Execute_priv: Y

Repl_slave_priv: Y

Repl_client_priv: Y

Create_view_priv: Y

Show_view_priv: Y

Create_routine_priv: Y

Alter_routine_priv: Y

Create_user_priv: Y

Event_priv: Y

Trigger_priv: Y

Create_tablespace_priv: Y

ssl_type:

ssl_cipher:

x509_issuer:

x509_subject:

max_questions: 0

max_updates: 0

max_connections: 0

max_user_connections: 0

plugin:

authentication_string: NULL

3 rows in set (0.00 sec)

六、perfect

參考blog：http://my.oschina.net/leejun2005/blog/76140

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跳過授權(quán)表登錄后使用replaceinto創(chuàng)建root權(quán)限用戶

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