Thursday 23 February 2012

MySQL recover root Password


mysqlIn this tutorial we will show you how to change the root password in MySQL.  we will show you also how to recover your MySQL password :

1-Mysqladmin command to change root password :
To setup root password for first time, use mysqladmin command at shell prompt as follows:
$ mysqladmin -u root password NEWPASSWORD
However, if you want to change (or update) a root password, then you need to use following command
$ mysqladmin -u root -p oldpassword newpass
Enter password:
2-Mysqladmin command to to recover root password :
You can recover MySQL database server password with following five easy steps.
Step # 1: Stop the MySQL server process.
Step # 2: Start the MySQL (mysqld) server/daemon process with the –skip-grant-tables option so that it will not prompt for password
Step # 3: Connect to mysql server as the root user
Step # 4: Setup new root password
Step # 5: Exit and restart MySQL server
Here are commands you need to type for each step (login as the root user):
Step # 1 : Stop mysql service
# /etc/init.d/mysqld stop
Stopping MySQL:                                            [  OK  ]

Step # 2: Start to MySQL server w/o password:
# mysqld_safe –skip-grant-tables &
IMPRTANT : Can happen that your terminal block, in this case just open a new terminal without closing the first one and continue the next step
Output:
[1] 5988
Starting mysqld daemon with databases from /var/lib/mysql
mysqld_safe[6025]: started

Step # 3: Connect to mysql server using mysql client:
# mysql -u root
Output:

Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 3
Server version: 5.0.45 Source distribution

Type ‘help;’ or ‘h’ for help. Type ‘c’ to clear the buffer.
mysql>

Step # 4: Setup new MySQL root user password
mysql> use mysql;
mysql> update user set password=PASSWORD(“NEW-ROOT-PASSWORD”) where User=’root’;
mysql> flush privileges;
mysql> quit

Step # 5: Stop MySQL Server:
# /etc/init.d/mysql stop
Output:
Stopping MySQL database server: mysqld
STOPPING server from pid file /var/run/mysqld/mysqld.pid
mysqld_safe[6186]: ended

[1]+ Done mysqld_safe –skip-grant-tables
Step # 6: Start MySQL server and test it
# /etc/init.d/mysql start
# mysql -u root -p

And is resolved, now keep your new password in a safe place :) .

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