Setting up mysql password is one of the essential task in systems administration
Note: Linux/Unix login root account for your operating system and MySQL root are different
You can use the built-in “mysqladmin” command to change MySQL root password. It can be executed anywhere as long the binary path is set on your Linux or Windows environment
Condition 1: If you have never set a root password for MySQL, the server does not require a password at all for connecting as root. To setup root password for first time, use mysqladmin command at shell prompt as follows:
# mysqladmin -u root password NEWPASSWORD
Condition2 : However, if you want to change (or update) a root password, then you need to use following command
#mysqladmin -u root -p’oldpassword’ password newpass
For example, If old password is xyz, and set new password to 654321, enter:
# mysqladmin -u root -p’xyz’ password ‘654321′
Condition 3: Change MySQL password for other user
To change a normal user password you need to type (let us assume you would like to change password for darwin):
# mysqladmin -u darwin -p oldpassword password newpass
Condition 4: Changing MySQL root user password using MySQL sql command
This is another method. MySQL stores username and passwords in user table inside MySQL database. You can directly update password using the following method to update or change password for user vivek:
1) Login to mysql server, type following command at shell prompt:
# mysql -u root -p
2) Use mysql database (type command at mysql> prompt):
mysql> use mysql;
3) Change password for user darwin:
mysql> update user set password=PASSWORD(”NEWPASSWORD”) where User=’darwin’;
4) Reload privileges:
mysql> flush privileges;
mysql> quit
Condition 5: Recover MySQL 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/mysql stop
Stopping MySQL database server: mysqld.
Step # 2: Start to MySQL server w/o password:
# mysqld_safe –skip-grant-tables &
[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 1 to server version: 4.1.15-Debian_1-log
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
