Method of Mysql Installation and Configuration Tuning and Modifying root Password

Step 1 Install

apt-get install mysql-server Account password is required

apt-get isntall mysql-client
apt-get libmysqlclient-dev

2. sudo netstat-tap grep mysql Check to see if the installation was successful

root@xyz:~# netstat -tap | grep mysql
tcp6    0   0 [::]:mysql       [::]:*         LISTEN   7510/mysqld --> Installation succeeded 

2. Set up mysql remote access

1. Edit the mysql configuration file to comment bind-address = 127.0. 0.1

vi /etc/mysql/mysql.conf.d/mysqld.cnf 

2. Use root to enter the mysql command line and execute the following two commands. In the example, the root account password of mysql: root

grant all on *.* to root@'%' identified by 'root' with grant option;
flush privileges;

3. Restart mysql

/etc/init.d/mysql restart

3. Various methods of MySQL modifying root password

Method 1: Use the SET PASSWORD command

 　　 mysql -u root
 　　 mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');

Method 2: Use mysqladmin

 　　 mysqladmin -u root password "newpass"

If root has already set a password, use the following method

 　 mysqladmin -u root password oldpass "newpass"

Method 3: user table is edited directly with UPDATE

mysql -u root
 　　 mysql> use mysql;
 　　 mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root';
 　　 mysql> FLUSH PRIVILEGES;
    In the loss root Password, you can do this 
 　　  mysqld_safe --skip-grant-tables&
 　　  mysql -u root mysql
 　　  mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root';
 　　  mysql> FLUSH PRIVILEGES;

Summarize