Where Is the MariaDB Password Stored on Linux?

9 minutes read

The MariaDB password on Linux is typically stored in the MariaDB configuration file, which is usually located at /etc/mysql/mariadb.conf.d/50-server.cnf or /etc/mysql/my.cnf. Within this configuration file, you will find a section called [client], where the password is stored under the parameter "password". However, it is important to note that the actual password is encrypted and not visible in plain text.

Best Web Hosting Providers of June 2024

1
Vultr

Rating is 5 out of 5

Vultr

  • Ultra-fast Intel Core Processors
  • Great Uptime and Support
  • High Performance and Cheap Cloud Dedicated Servers
2
Digital Ocean

Rating is 4.9 out of 5

Digital Ocean

  • Professional hosting starting at $5 per month
  • Remarkable Performance


How to enable slow query logging in MariaDB on Linux?

To enable slow query logging in MariaDB on Linux, you can follow these steps:

  1. Open the MariaDB configuration file, usually located at /etc/my.cnf or /etc/mysql/my.cnf, using a text editor such as nano or vi.
  2. Locate the [mysqld] section in the configuration file. If it doesn't exist, add the section at the bottom of the file.
  3. Add the following line under the [mysqld] section to enable slow query logging: slow_query_log = 1
  4. Specify the path and name of the slow query log file by adding the following line: slow_query_log_file = /path/to/slow-query.log Replace /path/to/slow-query.log with the desired file location and name.
  5. To configure the threshold value for slow queries, add the following line: long_query_time = 2 In this example, a query that takes more than 2 seconds to execute will be considered a slow query. Adjust the value as per your requirement.
  6. Save the changes to the configuration file.
  7. Restart the MariaDB service to apply the changes: sudo systemctl restart mariadb


Now, MariaDB will start logging slow queries to the specified file. You can analyze the log file to identify and optimize slow queries for better performance.


What is the purpose of the GROUP BY clause in MariaDB on Linux?

The purpose of the GROUP BY clause in MariaDB on Linux is to divide the result set of a query into groups based on one or more columns. It is typically used in combination with aggregate functions, such as SUM, COUNT, AVG, etc., to perform calculations on each group separately. The GROUP BY clause is useful for grouping similar data together and obtaining summarized information from larger datasets.


What is the MariaDB root password by default on Linux?

The MariaDB root password is not set by default on Linux. During the installation process, you will be prompted to set a root password for the MariaDB database server.

Best Linux Ubuntu Books in 2024

1
Official Ubuntu Book, The

Rating is 5 out of 5

Official Ubuntu Book, The

2
Ubuntu Linux Bible

Rating is 4.9 out of 5

Ubuntu Linux Bible

3
Ubuntu Linux Unleashed 2021 Edition

Rating is 4.8 out of 5

Ubuntu Linux Unleashed 2021 Edition

4
Linux Basics for Hackers: Getting Started with Networking, Scripting, and Security in Kali

Rating is 4.7 out of 5

Linux Basics for Hackers: Getting Started with Networking, Scripting, and Security in Kali

5
Learn Linux Quickly: A Comprehensive Guide for Getting Up to Speed on the Linux Command Line (Ubuntu) (Crash Course With Hands-On Project)

Rating is 4.6 out of 5

Learn Linux Quickly: A Comprehensive Guide for Getting Up to Speed on the Linux Command Line (Ubuntu) (Crash Course With Hands-On Project)

6
Mastering Ubuntu Server: Explore the versatile, powerful Linux Server distribution Ubuntu 22.04 with this comprehensive guide, 4th Edition

Rating is 4.5 out of 5

Mastering Ubuntu Server: Explore the versatile, powerful Linux Server distribution Ubuntu 22.04 with this comprehensive guide, 4th Edition


How to grant privileges to a user in MariaDB on Linux?

To grant privileges to a user in MariaDB on Linux, you can follow these steps:

  1. Connect to the MariaDB server as a user with administrative privileges. You can use the following command to log in:
1
mysql -u root -p


You will be prompted to enter the password for the root user.

  1. Once you are logged in to the MariaDB server, you need to select the specific database where you want to grant privileges to the user. You can use the following command to switch to the desired database:
1
USE database_name;


Replace database_name with the name of the database you want to grant privileges on.

  1. Now, you can grant privileges to the user using the GRANT statement. Here's the basic syntax:
1
GRANT privileges ON database_name.table_name TO 'username'@'localhost';


Replace privileges with the specific privileges you want to grant, such as SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, etc. Replace database_name.table_name with the specific database and table where you want to grant privileges. Replace username with the name of the user you want to grant privileges to, and localhost with the appropriate host.

  1. After executing the GRANT statement, you need to flush the privileges to ensure that the changes take effect. You can use the following command:
1
FLUSH PRIVILEGES;


That's it! The specified user should now have the granted privileges on the specified database and table.


What is the maximum length of a table name in MariaDB on Linux?

The maximum length of a table name in MariaDB on Linux is generally 64 characters. However, it can vary depending on the specific file system being used. Some file systems may have limitations on the maximum length of a file name or path, which can affect the maximum length of a table name.


What is the purpose of the TRUNCATE statement in MariaDB on Linux?

The purpose of the TRUNCATE statement in MariaDB on Linux is to delete all the data from a specified table, while keeping the table structure intact. This is different from the DELETE statement, which removes specific rows from the table. TRUNCATE is a faster and more efficient method of deleting all the data in a table compared to DELETE, especially when dealing with large tables, as it does not generate individual undo logs for each row deletion. Additionally, TRUNCATE also resets the auto-increment values of the table, whereas DELETE does not.


What is the purpose of the LIMIT clause in MariaDB on Linux?

The purpose of the LIMIT clause in MariaDB on Linux is to restrict the number of rows returned by a SELECT statement. It allows you to specify a limit to the number of rows to be fetched, starting from the first row of the result set. This can be useful for pagination, limiting the amount of data retrieved, or optimizing performance by reducing the amount of data transferred.

Facebook Twitter LinkedIn Telegram Whatsapp Pocket

Related Posts:

To set MariaDB driver properties using Hibernate, you need to define the properties in the Hibernate configuration file. You can specify the driver class, the database URL, the username, and password in the hibernate.cfg.xml file.For example, you can set the d...
To reset a forgotten password on a Windows laptop, you can follow these steps:Start your laptop and wait for the log-in screen to appear.If there is a password hint displayed, try to recall your password using it.If you are unable to remember the password, cli...
To change a password on the Ubuntu server, you can follow these steps:Log in to your Ubuntu server as an administrator or with sudo privileges.Open a terminal or SSH into the server.Use the passwd command, followed by the username whose password you want to ch...
To change the Ubuntu password, you can follow these steps:Open the terminal by pressing Ctrl+Alt+T or searching for "terminal" in the application launcher. In the terminal window, type the following command and press Enter: passwd You will be prompted ...
Installing WordPress on Linux involves several steps. Here's a brief description of each step:Prerequisites: Ensure that your Linux system has Apache or Nginx web server software installed along with MySQL or MariaDB database software. Download WordPress: ...
To install Golang in Kali Linux, you can follow these steps:Open the terminal on your Kali Linux system. Download the latest stable version of Golang from the official website. You can use the wget command to download it directly from the terminal. For example...