ubuntu18.04安装mysql

1.安装MySQL


在Ubuntu中,默认情况下,只有最新版本的MySQL包含在APT软件包存储库中,要安装它,只需更新服务器上的包索引并安装默认包apt-get。

#命令1
sudo apt-get update
#命令2
sudo apt-get install mysql-server
ubuntu18.04安装mysql

2.配置MySQL

2.1 初始化配置

sudo mysql_secure_installation

#1
VALIDATE PASSWORD PLUGIN can be used to test passwords...
Press y|Y for Yes, any other key for No: N (我的选项)

#2
Please set the password for root here...
New password: (输入密码)
Re-enter new password: (重复输入)

#3
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them...
Remove anonymous users? (Press y|Y for Yes, any other key for No) : N (我的选项)

#4
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? (Press y|Y for Yes, any other key for No) : Y (我的选项)

#5
By default, MySQL comes with a database named 'test' that
anyone can access...
Remove test database and access to it? (Press y|Y for Yes, any other key for No) : N (我的选项)

#6
Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.
Reload privilege tables now? (Press y|Y for Yes, any other key for No) : Y (我的选项)
 

2.2 检查mysql服务状态

systemctl status mysql.service

ubuntu18.04安装mysql

3.配置远程访问

在Ubuntu下MySQL缺省是只允许本地访问的,使用workbench连接工具是连不上的;
如果你要其他机器也能够访问的话,需要进行配置;

3.1 首先用根用户进入

sudo mysql -uroot -p

GRANT ALL PRIVILEGES ON *.* TO [email protected] IDENTIFIED BY "password";

4 修改配置文件

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

注释 bind-address

备注:

出现报错client does not support authentication protocol requested by server consider

sudo mysql -uroot -p

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

 

FLUSH PRIVILEGES;