MySQL CentOS：拒絕用戶'@'localhost'到數據庫的訪問

-1

我在CentOS中使用sudo yum install mysql-server安裝了MySQL，並使用mysql -u root -p登錄到MySQL並給出空白密碼。它不允許我使用MySQL數據庫或選擇用戶/更新密碼/創建數據庫。MySQL CentOS：拒絕用戶'@'localhost'到數據庫的訪問

mysql> select user(); 
+----------------+ 
| user()   | 
+----------------+ 
| [email protected] | 
+----------------+ 
1 row in set (0.00 sec) 

mysql> use mysql; 
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql' 

mysql> UPDATE user SET Password=PASSWORD('*****') WHERE user='root'; 
ERROR 1046 (3D000): No database selected 

mysql> show grants; 
+--------------------------------------+ 
| Grants for @localhost    | 
+--------------------------------------+ 
| GRANT USAGE ON *.* TO ''@'localhost' | 
+--------------------------------------+ 
1 row in set (0.00 sec) 


[[email protected]****~]$ sudo /sbin/service mysqld stop 
Redirecting to /bin/systemctl stop mysqld.service 
[[email protected]****~]$ sudo mysqld_safe 
151026 14:40:32 mysqld_safe Logging to '/var/log/mysqld.log'. 
151026 14:40:32 mysqld_safe A mysqld process already exists 
[[email protected]*****~]$ mysql -u root 
Welcome to the MySQL monitor. Commands end with ; or \g. 
Your MySQL connection id is 152 
Server version: 5.6.27 MySQL Community Server (GPL) 

Copyright (c) 2000, 2015, 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> use mysql; 
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql' 
mysql>

錯誤再次：

[[email protected]~]$ sudo /sbin/service mysqld stop 
Redirecting to /bin/systemctl stop mysqld.service 
[centos~]$ sudo mysqld_safe --skip-grant-tables & 
[1] 25678 
[centos~]$ 151026 14:53:07 mysqld_safe Logging to '/var/log/mysqld.log'. 
151026 14:53:07 mysqld_safe A mysqld process already exists 

[1]+ Exit 1     sudo mysqld_safe --skip-grant-tables 
[[email protected]~]$ sudo mysql -u root 
Welcome to the MySQL monitor. Commands end with ; or \g. 
Your MySQL connection id is 160 
Server version: 5.6.27 MySQL Community Server (GPL) 

Copyright (c) 2000, 2015, 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> use mysql; 
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'

請讓我知道如何解決這個問題。

來源

2015-10-26 CentosUser

啓動它，您不會手動更改用戶數據庫。 '爲root @ localhost = password（'*****'）設置密碼' –

當我這樣做時，它會拋出一個錯誤。 mysql>爲root @ localhost = password（'****'）設置密碼; 錯誤1133（42000）：在用戶表中找不到任何匹配的行 – CentosUser

sudo /etc/init.d/mysql stop
sudo mysqld_safe --skip-grant-tables &
sudo mysql -u root

安裝新的MySQL root用戶密碼

use mysql; 
update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root'; 
flush privileges; 
quit

停止MySQL服務器：sudo /etc/init.d/mysql stop（如有錯誤使用sudo）
啓動MySQL服務器並進行測試：sudo mysql -u root -p

來源

2015-10-26 14:29:29

步驟1,2和3成功。但在第4步中，當我運行「使用MySQL」時，出現錯誤。 mysql>使用mysql; 錯誤1044（42000）：訪問拒絕用戶'''本地主機'到數據庫'mysql' – CentosUser

顯示我的第4個查詢 –

mysql> use mysql; 錯誤1044（42000）：訪問拒絕用戶'''本地主機'到數據庫'mysql' – CentosUser

如果沒有設置密碼，你不能給使用MySQL命令-p參數。只用mysql -u root

來源

2015-10-26 15:01:50 IBuzZBasHI

MySQL CentOS：拒絕用戶'@'localhost'到數據庫的訪問

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