Use yum to install MySQL under Linux, and start, log in, and remotely access the MySQL database.
1. Installation
Check if it is installed:
yum list installed mysql*
rpm -qa | grep mysql*
Check if the package is installed:
yum list mysql*
Install the mysql client:
yum install mysql
Install mysql server side:
yum install mysql-server
yum install mysql-devel
2. Start && Stop
Database character set settings
Add default-character-set=utf8 to the mysql configuration file /etc/my.cnf
Start the mysql service:
service mysqld start or /etc/init.d/mysqld start
boot:
chkconfig -add mysqld, check whether the startup settings are successful chkconfig --list | grep mysql*
mysqld 0: off 1: off 2: on 3: on 4: on 5: on 6: off
stop:
service mysqld stop
3. Login
Create root administrator: mysqladmin -u root password 123456
Login: mysql -u root -p Enter the password.
Forgot password: service mysqld stop
mysqld_safe --user=root --skip-grant-tables
mysql -u root
use mysql
update user set password=password("new_pass") where user="root";
flush privileges;
4. Remote access
Open firewall port number
Adding permissions to mysql: A new record is added to the user table in the mysql library. The host is "%" and the user is "root".
mysql>mysql -u root -p;
mysql>use mysql;
mysql>update user set host = '%' where user = 'root';
mysql>select host, user from user;
mysql>flush privileges;
5. Several important directories of Linux MySQL
Database directory: /var/lib/mysql/
Configuration file: /usr/share /mysql (mysql.server command and configuration file)
Related commands: /usr/bin (commands such as mysqladmin mysqldump)
Startup script: /etc/rc.d/init.d/ (directory of startup script file mysql)