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sources/tech/20170308 How to Reset MySQL or MariaDB Root Password in Linux.md

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+How to Reset MySQL or MariaDB Root Password in Linux
+============================================================
+
+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.
+
+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!).
+
+**Suggested Read:** [Change MySQL or MariaDB Root Password][1]
+
+This article will come in handy. We will explain how to reset or recover forgottent MySQL or MariaDB root password in Linux.
+
+Although we will use a MariaDB server in this article, the instructions should work for MySQL as well.
+
+### Recover MySQL or MariaDB root Password
+
+To begin, stop the database service and check the service status, we should see the environment variable we set previously:
+
+```
+------------- SystemD ------------- 
+# systemctl stop mariadb
+------------- SysVinit -------------
+# /etc/init.d/mysqld stop
+```
+
+Next, start the service with `--skip-grant-tables`:
+
+```
+------------- SystemD ------------- 
+# systemctl set-environment MYSQLD_OPTS="--skip-grant-tables"
+# systemctl start mariadb
+# systemctl status mariadb
+------------- SysVinit -------------
+# mysqld_safe --skip-grant-tables &
+```
+[
+ ![Start MySQL/MariaDB with Skip Tables](http://www.tecmint.com/wp-content/uploads/2017/03/Start-MySQL-with-Skip-Tables.png) 
+][2]
+
+Start MySQL/MariaDB with Skip Tables
+
+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):
+
+```
+# mysql -u root
+```
+
+From then on, follow the steps outlined below.
+
+```
+MariaDB [(none)]> USE mysql;
+MariaDB [(none)]> UPDATE user SET password=PASSWORD('YourNewPasswordHere') WHERE User='root' AND Host = 'localhost';
+MariaDB [(none)]> FLUSH PRIVILEGES;
+```
+
+Finally, stop the service, unset the environment variable and start the service once again:
+
+```
+------------- SystemD ------------- 
+# systemctl stop mariadb
+# systemctl unset-environment MYSQLD_OPTS
+# systemctl start mariadb
+------------- SysVinit -------------
+# /etc/init.d/mysql stop
+# /etc/init.d/mysql start
+```
+
+This will cause the previous changes to take effect, allowing you to connect to the database server using the new password.
+
+##### Summary
+
+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!
+
+SHARE[+][3][0][4][6][5][12][6][
+ ![Ask Anything](http://www.tecmint.com/wp-content/themes/tecmint/images/help.png) 
+][7]</article>
+
+### If You Appreciate
+
+--------------------------------------------------------------------------------
+
+作者简介：
+
+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.
+
+--------------------------------------------------------------------------------
+
+via: http://www.tecmint.com/reset-mysql-or-mariadb-root-password/
+
+作者：[Gabriel Cánepa][a]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]:http://www.tecmint.com/author/gacanepa/
+
+[1]:http://www.tecmint.com/change-mysql-mariadb-root-password/
+[2]:http://www.tecmint.com/wp-content/uploads/2017/03/Start-MySQL-with-Skip-Tables.png
+[3]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
+[4]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
+[5]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
+[6]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#
+[7]:http://www.tecmint.com/reset-mysql-or-mariadb-root-password/#comments
+[8]:http://www.tecmint.com/author/gacanepa/
+[9]:http://www.tecmint.com/10-useful-free-linux-ebooks-for-newbies-and-administrators/
+[10]:http://www.tecmint.com/free-linux-shell-scripting-books/