解決 MYSQL 登入時,ERROR 1045 (28000) using password: NO 的方法



我的系統是 UBUNTU 11.04,安裝的MYSQL版本為14.14(注1),安裝好並設定 root 密碼後,透過終端機輸入指令 mysql -u root ,卻出現

    ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) 訊息。

改輸入 mysql -u root -p  強制輸入密碼,卻變成

    ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

在網路上查詢了一下,發現問題似乎與 'root'@'localhost' ,帳號跟登入位置與密碼對應有關,也發現這問題十分氾濫,並似乎沒有個好的SOP解決流程,於是試了幾種方法,整理成以下心得:

===================================



1.首先,停止MYSQL 服務:

    #  /etc/init.d/mysql stop              or  #  stop mysql          or # service mysql stop

2.接著跳過授權表訪問,命令如下:

    # mysqld_safe --user=mysql --skip-grant-tables --skip-networking &

3.登錄 MYSQL:

    # mysql -uroot mysql   

    or

    # mysql -uroot mysql -p

    輸入 root 密碼,進入MYSQL。

    這裡若依舊跳出 ERROR 1045 (28000) 訊息,則請跳至文末的 A 步驟

4.重新寫入 root 密碼:

    mysql> UPDATE user SET Password=PASSWORD('輸入你 root 的新密碼') where USER='root';

5. 把 所有資料庫(含其下的所有資料表),授權給 root,從 localhost 上來,密碼為引號內數據  '*****'。

    mysql> GRANT all ON *.* TO root@'localhost' IDENTIFIED BY '輸入你 root 的密碼';

6.更新權限!密碼若有更動,一定要執行此行指令。

    mysql> FLUSH PRIVILEGES;

7.離開 MYSQL

    mysql> quit

8.輸入密碼,正常進入 MYSQL。

    # mysql -uroot -p


===================================


A.直接使用 /etc/mysql/debian.cnf 文件中 [client] 提供的用戶名和密碼

    # mysql -udebian-sys-maint -p

    輸入 [client] 中的密碼

    mysql> UPDATE user SET Password=PASSWORD('輸入你 root 的新密碼') where USER='root';
    // 重新寫入 root 密碼

    mysql> GRANT all ON *.* TO root@'localhost' IDENTIFIED BY '輸入你 root 的密碼';
    // 把 所有資料庫(含其下的所有資料表),授權給 root,從 localhost 上來,密碼為引號內數據  '*****'。

    mysql> FLUSH PRIVILEGES;
    // 更新權限!密碼若有更動,一定要執行此行指令。

    mysql> quit

    # mysql -uroot -p

    輸入密碼,正常進入 MYSQL。



===================================




以上兩種狀況我都遇過,依以上方式我的問題都解決了。

另外改好後,MYSQL 系統似乎需要一點時間更動,因為在終端機上MYSQL可進去了,網頁的 phpmyadmin 卻依舊進不去,SSH連也進不去,直到間隔了快 10 秒,才一切正常。










注1: 欲查詢MYSQL版本指令為

    # mysql -V

      查詢PHP 版本指令為

    # php -v

      要注意大小寫喔!





留言

  1. 您好:我執行這個步驟後

    5. 把 所有資料庫(含其下的所有資料表),授權給 root,從 localhost 上來,密碼為引號內數據 '*****'。

    mysql> GRANT all ON *.* TO root@'localhost' IDENTIFIED BY '輸入你 root 的密碼';

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

    請問,是哪邊有問題??

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    回覆
    1. 1.service mysqld stop
      2.service mysql start
      3.mysql -uroot -p
      4. GRANT all ON *.* TO root@'localhost' IDENTIFIED BY '輸入你 root 的密碼';
      5.FLUSH PRIVILEGES;

      刪除
  2. 根本看不懂 要在哪裡打阿==????

    回覆刪除
  3. 根本看不懂 要在哪裡打阿==????

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  4. 如果是根本看不懂的人 就真的無法了 我覺得打得很好 感謝 我解決了。

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  5. 谢谢,解决了我的问题。
    myblog:http://blog.csdn.net/laoyang360

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  6. 如果找不到password欄位的,請試試下列sql
    ==================================================================
    UPDATE mysql.user
    SET authentication_string = PASSWORD('MyNewPass'), password_expired = 'N'
    WHERE User = 'root' AND Host = 'localhost';

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