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107 lines
4.3 KiB
Markdown
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How to Reset MySQL or MariaDB Root Password in Linux
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============================================================
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If you are setting up a MySQL or MariaDB database server for the first time, chances are you will be running mysql_secure_installation soon afterwards to implement basic security settings.
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One of these settings is the password for the database root account – which you must keep private and use only when strictly required. If you forget the password or need to reset it (for example, when a database administrator changes roles – or is laid off!).
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**Suggested Read:** [Change MySQL or MariaDB Root Password][1]
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This article will come in handy. We will explain how to reset or recover forgottent MySQL or MariaDB root password 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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### Recover MySQL or MariaDB root Password
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To begin, stop the database service and check the service status, we should see the environment variable we set previously:
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```
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------------- SystemD -------------
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# systemctl stop mariadb
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------------- SysVinit -------------
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# /etc/init.d/mysqld stop
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```
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Next, start the service with `--skip-grant-tables`:
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```
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------------- SystemD -------------
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# systemctl set-environment MYSQLD_OPTS="--skip-grant-tables"
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# systemctl start mariadb
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# systemctl status mariadb
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------------- SysVinit -------------
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# mysqld_safe --skip-grant-tables &
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```
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[
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][2]
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Start MySQL/MariaDB with Skip Tables
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This will allow you to connect to the database server as root without a password (you may need to switch to a different terminal to do so):
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```
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# mysql -u root
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```
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From then on, follow the steps outlined below.
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```
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MariaDB [(none)]> USE mysql;
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MariaDB [(none)]> UPDATE user SET password=PASSWORD('YourNewPasswordHere') WHERE User='root' AND Host = 'localhost';
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MariaDB [(none)]> FLUSH PRIVILEGES;
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```
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Finally, stop the service, unset the environment variable and start the service once again:
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```
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------------- SystemD -------------
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# systemctl stop mariadb
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# systemctl unset-environment MYSQLD_OPTS
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# systemctl start mariadb
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------------- SysVinit -------------
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# /etc/init.d/mysql stop
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# /etc/init.d/mysql start
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```
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This will cause the previous changes to take effect, allowing you to connect to the database server using the new password.
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##### Summary
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In this article we have discussed how to reset the MariaDB / MySQL root password. As always, feel free to use the comment form below to drop us a note if you have any questions or feedback. We look forward to hearing from you!
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SHARE[+][3][0][4][6][5][12][6][
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][7]</article>
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### If You Appreciate
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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/reset-mysql-or-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/change-mysql-mariadb-root-password/
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[2]:http://www.tecmint.com/wp-content/uploads/2017/03/Start-MySQL-with-Skip-Tables.png
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[3]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
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[4]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
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[5]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
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[6]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
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[7]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#comments
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[8]:http://www.tecmint.com/author/gacanepa/
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[9]:http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
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[10]:http://www.tecmint.com/free-linux-shell-scripting-books/
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