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99 lines
3.9 KiB
Markdown
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How to Change Root Password of MySQL or MariaDB in Linux
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============================================================
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If you’re [installing MySQL or MariaDB in Linux][1] for the first time, chances are you will be executing mysql_secure_installation script to secure your MySQL installation with basic settings.
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One of these settings is, database root password – which you must keep secret and use only when it is required. If you need to change it (for example, when a database administrator changes roles – or is laid off!).
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**Suggested Read:** [Recover MySQL or MariaDB Root Password in Linux][2]
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This article will come in handy. We will explain how to change a root password of MySQL or MariaDB database server in Linux.
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Although we will use a MariaDB server in this article, the instructions should work for MySQL as well.
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### Change MySQL or MariaDB Root Password
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You know the root password and want to reset it, in this case, let’s make sure MariaDB is running:
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```
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------------- CentOS/RHEL 7 and Fedora 22+ -------------
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# systemctl is-active mariadb
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------------- CentOS/RHEL 6 and Fedora -------------
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# /etc/init.d/mysqld status
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```
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[
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][3]
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Check MySQL Status
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If the above command does not return the word `active` as output or its stopped, you will need to start the database service before proceeding:
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```
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------------- CentOS/RHEL 7 and Fedora 22+ -------------
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# systemctl start mariadb
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------------- CentOS/RHEL 6 and Fedora -------------
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# /etc/init.d/mysqld start
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```
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Next, we will login to the database server as root:
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```
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# mysql -u root -p
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```
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For compatibility across versions, we will use the following statement to update the user table in the mysql database. Note that you need to replace `YourPasswordHere` with the new password you have chosen for root.
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```
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MariaDB [(none)]> USE mysql;
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MariaDB [(none)]> UPDATE user SET password=PASSWORD('YourPasswordHere') WHERE User='root' AND Host = 'localhost';
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MariaDB [(none)]> FLUSH PRIVILEGES;
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```
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To validate, exit your current MariaDB session by typing.
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```
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MariaDB [(none)]> exit;
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```
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and then press Enter. You should now be able to connect to the server using the new password.
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[
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][4]
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Change MySQL/MariaDB Root Password
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##### Summary
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In this article we have explained how to change the MariaDB / MySQL root password – whether you know the current one or not.
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As always, feel free to drop us a note if you have any questions or feedback using our comment form below. We look forward to hearing from you!
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--------------------------------------------------------------------------------
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作者简介：
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Gabriel Cánepa is a GNU/Linux sysadmin and web developer from Villa Mercedes, San Luis, Argentina. He works for a worldwide leading consumer product company and takes great pleasure in using FOSS tools to increase productivity in all areas of his daily work.
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/change-mysql-mariadb-root-password/
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作者：[Gabriel Cánepa][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/gacanepa/
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[1]:http://www.tecmint.com/install-mariadb-in-centos-7/
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[2]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/
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[3]:http://www.tecmint.com/wp-content/uploads/2017/03/Check-MySQL-Status.png
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[4]:http://www.tecmint.com/wp-content/uploads/2017/03/Change-MySQL-Root-Password.png
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[5]:http://www.tecmint.com/author/gacanepa/
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[6]:http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
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[7]:http://www.tecmint.com/free-linux-shell-scripting-books/
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