zhwz 发表于 2018-10-3 06:05:59

mysql管理用户

  # mysql -uroot -p
  Enter password:
  Welcome to the MySQL monitor.Commands end with ; or \g.

  Your MySQL connection>  Server version: 5.6.30-log Source distribution
  Copyright (c) 2000, 2013, 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> select user,host,password from mysql.user;
  +---------+------------+-------------------------------------------+
  | user    | host       | password                                  |
  +---------+------------+-------------------------------------------+
  | root    | localhost| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | zampdmp-02 |                                           |
  | root    | 127.0.0.1|                                           |
  | root    | ::1      |                                           |
  |         | localhost|                                           |
  |         | zampdmp-02 |                                           |
  | hivedb| localhost| *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | hivedb| %          | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | root    | %          | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | etler   | %          | *8C377BBE4E13B4FA9AB2727937F3FEF047DB0AAF |
  | exposer | %          | *1B5955820D31F633B073D0A326801133A15DE967 |
  +---------+------------+-------------------------------------------+
  11 rows in set (0.00 sec)
  mysql> select user,host,password from mysql.user where password='';
  +------+------------+----------+
  | user | host       | password |
  +------+------------+----------+
  | root | zampdmp-02 |          |
  | root | 127.0.0.1|          |
  | root | ::1      |          |
  |      | localhost|          |
  |      | zampdmp-02 |          |
  +------+------------+----------+
  5 rows in set (0.00 sec)
  mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'zampdmp-02'IDENTIFIED BY PASSWORD '*225AF6FA78393CB66A2CF30F85001B643546ED44' WITH GRANT OPTION
  -> ;
  Query OK, 0 rows affected, 1 warning (0.00 sec)
  mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'127.0.0.1'IDENTIFIED BY PASSWORD '*225AF6FA78393CB66A2CF30F85001B643546ED44' WITH GRANT OPTION;
  Query OK, 0 rows affected (0.00 sec)
  mysql> select user,host,password from mysql.user where password='';
  +------+------------+----------+
  | user | host       | password |
  +------+------------+----------+
  | root | ::1      |          |
  |      | localhost|          |
  |      | zampdmp-02 |          |
  +------+------------+----------+
  3 rows in set (0.00 sec)
  mysql> select user,host,password from mysql.user;
  +---------+------------+-------------------------------------------+
  | user    | host       | password                                  |
  +---------+------------+-------------------------------------------+
  | root    | localhost| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | zampdmp-02 | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | 127.0.0.1| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | ::1      |                                           |
  |         | localhost|                                           |
  |         | zampdmp-02 |                                           |
  | hivedb| localhost| *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | hivedb| %          | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | root    | %          | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | etler   | %          | *8C377BBE4E13B4FA9AB2727937F3FEF047DB0AAF |
  | exposer | %          | *1B5955820D31F633B073D0A326801133A15DE967 |
  +---------+------------+-------------------------------------------+
  11 rows in set (0.00 sec)
  mysql> select user,host,password from mysql.user where password = '';
  +------+------------+----------+
  | user | host       | password |
  +------+------------+----------+
  | root | ::1      |          |
  |      | localhost|          |
  |      | zampdmp-02 |          |
  +------+------------+----------+
  3 rows in set (0.00 sec)
  mysql> delete from mysql.user where password='';
  Query OK, 3 rows affected (0.00 sec)
  mysql> select user,host,password from mysql.user where password = '';
  Empty set (0.00 sec)
  mysql> select user,host,password from mysql.user;
  +---------+------------+-------------------------------------------+
  | user    | host       | password                                  |
  +---------+------------+-------------------------------------------+
  | root    | localhost| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | zampdmp-02 | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | 127.0.0.1| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | hivedb| localhost| *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | hivedb| %          | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | root    | %          | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | etler   | %          | *8C377BBE4E13B4FA9AB2727937F3FEF047DB0AAF |
  | exposer | %          | *1B5955820D31F633B073D0A326801133A15DE967 |
  +---------+------------+-------------------------------------------+
  8 rows in set (0.00 sec)
  mysql> flush privileges;
  Query OK, 0 rows affected (0.00 sec)

  mysql> grant all privileges on *.* to 'hivedb'@'zampdmp-02'>  ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'options' at line 1

  mysql> grant all privileges on *.* to 'hivedb'@'zampdmp-02'>  Query OK, 0 rows affected, 1 warning (0.00 sec)
  mysql> select user,host,password from mysql.user;
  +---------+------------+-------------------------------------------+
  | user    | host       | password                                  |
  +---------+------------+-------------------------------------------+
  | root    | localhost| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | zampdmp-02 | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | 127.0.0.1| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | hivedb| zampdmp-02 | *9AE5587FACBA2EE66D40CE18BAC51361FD134B42 |
  | hivedb| localhost| *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | hivedb| %          | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | root    | %          | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | etler   | %          | *8C377BBE4E13B4FA9AB2727937F3FEF047DB0AAF |
  | exposer | %          | *1B5955820D31F633B073D0A326801133A15DE967 |
  +---------+------------+-------------------------------------------+
  9 rows in set (0.00 sec)

  mysql> grant all privileges on *.* to 'hivedb'@'127.0.0.1'>  Query OK, 0 rows affected (0.00 sec)
  mysql> flush privileges;
  Query OK, 0 rows affected (0.00 sec)
  mysql> select user,host,password from mysql.user;
  +---------+------------+-------------------------------------------+
  | user    | host       | password                                  |
  +---------+------------+-------------------------------------------+
  | root    | localhost| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | zampdmp-02 | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | 127.0.0.1| *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | hivedb| 127.0.0.1| *9AE5587FACBA2EE66D40CE18BAC51361FD134B42 |
  | hivedb| zampdmp-02 | *9AE5587FACBA2EE66D40CE18BAC51361FD134B42 |
  | hivedb| localhost| *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | hivedb| %          | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | root    | %          | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | etler   | %          | *8C377BBE4E13B4FA9AB2727937F3FEF047DB0AAF |
  | exposer | %          | *1B5955820D31F633B073D0A326801133A15DE967 |
  +---------+------------+-------------------------------------------+
  10 rows in set (0.00 sec)
  mysql> delete from mysql.user where user=root and host=zampdmp-02;
  ERROR 1054 (42S22): Unknown column 'root' in 'where clause'
  mysql> delete from mysql.user where user='root' and host='zampdmp-02';
  Query OK, 1 row affected (0.00 sec)
  mysql> delete from mysql.user where user='hivedb' and host='zampdmp-02';
  Query OK, 1 row affected (0.00 sec)
  mysql> select user,host,password from mysql.user;
  +---------+-----------+-------------------------------------------+
  | user    | host      | password                                  |
  +---------+-----------+-------------------------------------------+
  | root    | localhost | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root    | 127.0.0.1 | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | hivedb| 127.0.0.1 | *9AE5587FACBA2EE66D40CE18BAC51361FD134B42 |
  | hivedb| localhost | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | hivedb| %         | *1F4A2E1E0471EC60934CC4896B8B03BC64E80B58 |
  | root    | %         | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | etler   | %         | *8C377BBE4E13B4FA9AB2727937F3FEF047DB0AAF |
  | exposer | %         | *1B5955820D31F633B073D0A326801133A15DE967 |
  +---------+-----------+-------------------------------------------+
  8 rows in set (0.00 sec)
  mysql> flush privileges;
  Query OK, 0 rows affected (0.00 sec)
  mysql> exit
  Bye
  # mysql -uroot -p -hzampdmp-02
  Enter password:
  Welcome to the MySQL monitor.Commands end with ; or \g.

  Your MySQL connection>  Server version: 5.6.30-log Source distribution
  Copyright (c) 2000, 2013, 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 |
  | david            |
  | elita            |
  | exp                |
  | hivedb             |
  | mysql            |
  | olap               |
  | performance_schema |
  | pub                |
  | test               |
  | tmp                |
  +--------------------+
  11 rows in set (0.00 sec)
  mysql> use tmp
  Database changed
  mysql> show tables;
  Empty set (0.00 sec)
  mysql> use exp
  Reading table information for completion of table and column names
  You can turn off this feature to get a quicker startup with -A
  Database changed
  mysql> show tables;
  +--------------------+
  | Tables_in_exp      |
  +--------------------+
  | export_segment_day |
  | segment_status   |
  | segment_total      |
  | segment_trait      |
  +--------------------+
  4 rows in set (0.00 sec)
  注意:允许localhost登录,则主机名和主机ip都可以登录,但是127.0.0.1不能登录,需要单独添加。
  mysql> select user,host,password from mysql.user;
  +------+-------------+-------------------------------------------+
  | user | host      | password                                  |
  +------+-------------+-------------------------------------------+
  | root | localhost   | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root | 172.22.64.% | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  +------+-------------+-------------------------------------------+
  2 rows in set (0.00 sec)
  # mysql -uroot -p -hlocalhost
  Enter password:
  # mysql -uroot -p -hzampdmp-01
  Enter password:
  # mysql -uroot -p -h172.22.64.01
  Enter password:
  # mysql -uroot -p -h127.0.0.1
  Enter password:
  ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server

  mysql> grant all privileges on *.* to 'root'@'127.0.0.1'>  Query OK, 0 rows affected (0.00 sec)
  mysql> select user,host,password from mysql.user;
  +------+-------------+-------------------------------------------+
  | user | host      | password                                  |
  +------+-------------+-------------------------------------------+
  | root | localhost   | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root | 127.0.0.1   | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  | root | 172.22.64.% | *225AF6FA78393CB66A2CF30F85001B643546ED44 |
  +------+-------------+-------------------------------------------+
  3 rows in set (0.00 sec)
  # mysql -uroot -p -h127.0.0.1 #登录成功
  Enter password:
  Welcome to the MySQL monitor.Commands end with ; or \g.

  Your MySQL connection>  Server version: 5.6.30-log Source distribution
  Copyright (c) 2000, 2013, 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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