Restart the MySQL root password
Methods one, using Mysqladmin
The code is as follows |
Copy Code |
#./mysqladmin-u root password ' newpassword ' #./mysqladmin-u root-h host_name password ' newpassword ' Usually mysqladmin ' s path is/usr/bin, HOST_NAME is your real host name, e.g. Localhost.localdomain. |
The quotes behind the password are not required, but quotation marks are required if the password contains spaces or some special symbols.
Method II, using MySQL SET password command
The code is as follows |
Copy Code |
#./mysql-u Root mysql> SET PASSWORD for ' root ' @ ' localhost ' = PASSWORD (' NewPassword '); mysql> SET PASSWORD for ' root ' @ ' host_name ' = PASSWORD (' NewPassword '); |
Method Three, update the user table with the UPDATE statement reset root password
The code is as follows |
Copy Code |
#./mysql-u Root mysql> UPDATE mysql.user SET Password = Password (' newpassword ') WHERE user = ' root '; mysql> FLUSH privileges; |
Method Four, start MySQL safe mode reset root password
1, stop the MySQL process
Execution:/etc/init.d/mysql stop, the specific location may vary depending on the system, it may be the path of/etc/init.d/mysql,/etc/init.d/mysqld, or the following direct termination (preferably do not use the following mandatory statement):
The code is as follows |
Copy Code |
# Killall-term Mysqld |
2. Start MySQL in safe mode
The code is as follows |
Copy Code |
# Mysqld_safe–skip-grant-tables & Or # Mysqld_safe--skip-grant-tables >/dev/null 2>&1 & |
Tip: Mysqld_safe is generally in the/usr/local/mysql/bin/directory.
3, login MySQL
After the two steps are completed, you can enter MySQL without the password.
The code is as follows |
Copy Code |
# mysql-u Root Or #/usr/local/mysql/bin/mysql-u Root MySQL |
4, change the root password
The following sentences are executed sequentially:
The code is as follows |
Copy Code |
Use MySQL; Select Host, user, password from user; Update user set Password=password ("NewPassword") where user= "root" Flush privileges; |
5. Exit the console and restart the MySQL service
The code is as follows |
Copy Code |
Service mysqld Restart Or /etc/init.d/mysql restart |
Forget the MySQL root password
First, manual modification
1. Stop MySQL Service
Execution:/etc/init.d/mysql stop, not necessarily on your machine/etc/init.d/mysql may also be/etc/init.d/mysqld
2, skip verification to start MySQL
The code is as follows |
Copy Code |
/usr/local/mysql/bin/mysqld_safe--skip-grant-tables >/dev/null 2>&1 & |
Note: If the location of the Mysqld_safe is not the same as the above need to be modified to your, if not clear can be found with the Find command.
3. Reset Password
Wait a minute and then execute:/usr/local/mysql/bin/mysql-u root MySQL
When the MySQL prompt appears, enter: Update user Set password = password (' Password to set ') where user = ' root ';
After carriage return carries out: flush privileges; Refresh the MySQL system permissions related tables. Re-execution: exit; Exit.
4, restart MySQL
Kill MySQL Process: Killall mysqld
Restart Mysql:/etc/init.d/mysql start
Second, use the Reset script
The code is as follows |
Copy Code |
wget Http://soft.vpser.net/lnmp/ext/reset_mysql_root_password.sh;sh reset_mysql_root_password.sh |
Suitable for LNMP or MySQL admin scripts in/etc/init.d/mysql and MySQL installed in/usr/local/mysql/. Otherwise, you need to modify the script before you execute it
code is as follows |
copy code |
Sh reset_ Mysql_root_password.sh. |