安装mysql(mariadb)

一、使用yum安装

部署脚本

#安装
yum -y install mariadb mariadb-server

#设置字符集为utf-8
cp /etc/my.cnf{,.bak}
cp /etc/my.cnf.d/client.cnf{,.bak}
cp /etc/my.cnf.d/mysql-clients.cnf{,.bak}

sed -i "s/^\[mysqld\]/\[mysqld\]\ninit_connect=\'SET collation_connection = utf8_unicode_ci\'/"  /etc/my.cnf
sed -i "s/^\[mysqld\]/\[mysqld\]\ninit_connect=\'SET NAMES utf8\'/"  /etc/my.cnf
echo "修改/etc/my.cnf后的配置"
cat /etc/my.cnf
echo ""
sed -i "s/^\[client\]/\[client\]\ndefault-character-set=utf8/"  /etc/my.cnf.d/client.cnf
sed -i "s/^\[mysql\]/\[mysql\]\ndefault-character-set=utf8/"   /etc/my.cnf.d/mysql-clients.cnf
echo "修改/etc/my.cnf.d/client.cnf后的配置"
cat /etc/my.cnf.d/client.cnf
echo "修改/etc/my.cnf.d/mysql-clients.cnf后的配置"
cat /etc/my.cnf.d/mysql-clients.cnf

#设置防火墙放通
echo "firewall-cmd --query-port=3306/tcp"
firewall-cmd --query-port=3306/tcp
echo "firewall-cmd --zone=public --add-port=3306/tcp --permanent"
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload
echo "firewall-cmd --query-port=3306/tcp"
firewall-cmd --query-port=3306/tcp

#启动
systemctl enable mariadb
systemctl start mariadb
systemctl status mariadb

二、初始化配置

mysql_secure_installation


#显示内容
[root@localhost ~]# mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

#没有密码，直接回车
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: 
Re-enter new password: 
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] n
 ... skipping.

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] n
 ... skipping.

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!