笔记/centos系统yum源安装MySQL

在防火墙中打开端口

[root@controller ~]# firewall-cmd --add-service mysql --permanent

FirewallD is not running

[root@controller ~]# firewall-cmd --reload

FirewallD is not running

[root@controller ~]# firewall-cmd --add-port 3306/tcp --permanent

FirewallD is not running

[root@controller ~]# firewall-cmd --list-service

FirewallD is not running

yum源直接安装

[root@controller ~]# yum -y install mariadb mariadb-server

[root@controller ~]# systemctl status mariadb

[root@controller ~]# systemctl is-enabled mariadb

[root@controller ~]# systemctl enable mariadb

[root@controller ~]# systemctl start mariadb

[root@controller ~]# systemctl status mariadb

[root@controller ~]# mysql_secure_installation

Enter current password for root (enter for none):

OK, successfully used password, moving on...

 

Setting the root password ensures that nobody can log into the MariaDB

root user without the proper authorisation.

 

Set root password? [Y/n] y

New password: 1.q

Re-enter new password: 1.q

Password updated successfully!

Reloading privilege tables..

 ... Success!

 

 

By default, a MariaDB installation has an anonymous user, allowing anyone

to log into MariaDB without having to have a user account created for

them.  This is intended only for testing, and to make the installation

go a bit smoother.  You should remove them before moving into a

production environment.

 

Remove anonymous users? [Y/n] y

 ... Success!

 

Normally, root should only be allowed to connect from 'localhost'.  This

ensures that someone cannot guess at the root password from the network.

 

Disallow root login remotely? [Y/n] y

 ... Success!

 

By default, MariaDB comes with a database named 'test' that anyone can

access.  This is also intended only for testing, and should be removed

before moving into a production environment.

 

Remove test database and access to it? [Y/n] y

 - Dropping test database...

 ... Success!

 - Removing privileges on test database...

 ... Success!

 

Reloading the privilege tables will ensure that all changes made so far

will take effect immediately.

 

Reload privilege tables now? [Y/n] y

 ... Success!

 

Cleaning up...

 

All done!  If you've completed all of the above steps, your MariaDB

installation should now be secure.

 

Thanks for using MariaDB!

 

[root@controller ~]# mysql -u root -p

Enter password: 1.q

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 13

Server version: 5.5.68-MariaDB MariaDB Server

 

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

MariaDB [(none)]>