Langsung ke konten utama

Adding a MySQL user when no MySQL users have admin rights

Adding a MySQL user when no MySQL users have admin rights

https://serverfault.com/questions/264170/adding-a-mysql-user-when-no-mysql-users-have-admin-rights

There is something interesting to note about MySQL when using skip-grant-tables.

Once you restart mysqld with skip-grant-tables, you cannot use GRANT and REVOKE commands.
Option 1) UPDATE password for root@localhost;

You could do this:

UPDATE mysql.user SET password=PASSWORD('whateverpasswordyouwant') WHERE user='root' and host='localhost';

then restart mysqld.

Option 2) You could INSERT a record directly into mysql.user. If you want to establish a new user for your self called superuser, you must do the following (this works for MySQL 5.5):

INSERT INTO mysql.user SET
                  Host = 'localhost',
                  User = 'superuser',
              Password = PASSWORD('whateverpasswordyouwant'),
           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',
            Alter_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',
            Event_priv = 'Y',
          Trigger_priv = 'Y',
Create_tablespace_priv = 'Y',
              ssl_type = '',
              ssl_cipher = '',
             x509_issuer = '',
            x509_subject = '',
           max_questions = 0,
             max_updates = 0,
         max_connections = 1000000,
    max_user_connections = 1000000
;
 
Make sure you get every column set to 'Y' since MySQL 4.x, 5.0, 5.1, 5.5 have different permissions in mysql.user.

One more warning on using skip-grant-tables: When you start mysqld with this, everyone and his gramdmother can login without authentication. You should start mysql like this:

service mysql restart --skip-grant-tables --skip-networking
 
This will disable TCP/IP and no one can sneak into the DB. When you are done, just do this:

service mysql restart

 

Label:

Komentar

Posting Komentar

Silakan dikomen...

Postingan populer dari blog ini

Mysql Import data from CSV File

  Microsoft Windows [Version 10.0.15063] (c) 2017 Microsoft Corporation. All rights reserved. C:\Users\PSI011>cd C:\xampp\mysql\bin C:\xampp\mysql\bin> mysqld 2017-08-22 14:24:49 15428 [Note] mysqld (mysqld 10.1.25-MariaDB) starting as process 16352 ... C:\xampp\mysql\bin> mysql -u root -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 9 Server version: 10.1.25-MariaDB mariadb.org binary distribution Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> use pkh; Database changed MariaDB [pkh]> LOAD DATA LOCAL INFILE 'D:/2017/PKH_FOR_BPKP/PKH_FOR_BPKP_01.csv' -> INTO TABLE pkh_bpkp -> FIELDS TERMINATED BY ',' -> OPTIONALLY ENCLOSED BY '"' -> ESCAPED BY '"' -> LINES TERMINATED BY '\n...
Posting Komentar
Baca selengkapnya

CREATE CROSS TAB QUERY IN MYSQL

MySQL Multi-Aggregated Rows in Crosstab Queries MySQL’s crosstabs contain aggregate functions on two or more fields, presented in a tabular format. In a multi-aggregate crosstab query, two different functions can be applied to the same field or the same function can be applied to multiple fields on the same (row or column) axis. Rob Gravelle shows you how to apply two different functions to the same field in order to create grouping levels in the row axis. Today’s topic of discussion is crosstabs, which contain multiple aggregate functions in the row axis of a tabular resultset. Recall from the the  All About the Crosstab Query  article that an aggregate function is one that summarizes a group of related data in some way. Examples of aggregate functions include COUNT, SUM, AVG, MIN, and MAX. In a multi-aggregate crosstab query, two different functions can be applied to the same field or the same function can be applied to two or more fields. Today we’ll create a query...
Posting Komentar
Baca selengkapnya

Linux Basic Command Cheat Sheet

 https://www.guru99.com/linux-commands-cheat-sheet.html Linux Command Cheat Sheet In this Linux/Unix command line cheat sheet, you will learn: Basic Linux commands File Permission commands Environment Variables command User management commands of linux Networking command Process command VI Editing Commands Basic Linux commands Command Description ls Lists all files and directories in the present working directory ls -R Lists files in sub-directories as well ls -a Lists hidden files as well ls -al Lists files and directories with detailed information like permissions,size, owner, etc. cd or cd ~ Navigate to HOME directory cd .. Move one level up cd To change to a particular directory cd / Move to the root directory cat > filename Creates a new file cat filename Displays the file content cat file1 file2 > file3 Joins two files (file1, file2) and stores the output in a new file (file3) mv file "new file path" Moves the files to the new location mv filename new_file_name Re...
Posting Komentar
Baca selengkapnya