mysql root 用户被删
2016-07-10 09:52
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[root@M ~]# vi /etc/my.cnf [mysqld] skip-grant-tables
[root@M ~]# service mysqld restart Shutting down MySQL... SUCCESS! Starting MySQL.. SUCCESS!
mysql> insert into user(user,password,host) values ('root','','localhost'); mysql> update user set Host='localhost',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',create_user_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' where user='root'; Query OK, 1 row affected (0.05 sec) Rows matched: 1 Changed: 1 Warnings: 0 [root@M ~]# grep skip /etc/my.cnf #skip-grant-tables skip-external-locking #skip-networking slave-skip-errors = all [root@M ~]# service mysqld restart Shutting down MySQL.. SUCCESS! Starting MySQL.. SUCCESS! [root@M ~]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.5.40-log MySQL Community Server (GPL) Copyright (c) 2000, 2014, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ 4 rows in set (0.05 sec) mysql>
mysql> update user set password=password("123") where host='localhost'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)
[root@M ~]# mysql -uroot -p123 Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 5 Server version: 5.5.40-log MySQL Community Server (GPL) Copyright (c) 2000, 2014, 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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