mysql刪除匿名使用者

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首先使用命令進入資料庫 

[[email protected] raul]# mysql -u root -pEnter password: Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 3Server version: 5.1.73 Source distributionCopyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

然後切換資料庫，進入我們須要操作的資料庫mysql

mysql> use mysqlReading table information for completion of table and column namesYou can turn off this feature to get a quicker startup with -ADatabase changed

刪除之前我們先查看一下資料庫的使用者表，看看使用者的存在情況

mysql> select user, host from user;+------+-----------------------+| user | host                  |+------+-----------------------+| root | 127.0.0.1             ||      | localhost             || root | localhost             ||      | localhost.localdomain || root | localhost.localdomain |+------+-----------------------+5 rows in set (0.00 sec)

我們看到啦，在user這一列有的行是空的。這就是那個匿名使用者啦～。在這一步我們已經找到匿名使用者啦，剩下的操作就是刪除掉這個使用者，保證登入安全

mysql> delete from user where user=‘‘;Query OK, 2 rows affected (0.00 sec)

此時mysql啟動並執行狀態顯示我們刪除了兩行資料，然後運行一邊查詢命令，確認一下是不是真的刪除成功啦？

mysql> select user, host from user;+------+-----------------------+| user | host                  |+------+-----------------------+| root | 127.0.0.1             || root | localhost             || root | localhost.localdomain |+------+-----------------------+3 rows in set (0.00 sec)

mysql刪除匿名使用者