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Ubuntu下安装MySQL(阿里云服务器)

时间:2021-07-01 10:21:17 帮助过:30人阅读

目录

  • 安装客户端和依赖环境
  • 初始化MySQL(MySQL 5.7并未设置默认密码,需要初始化,即运行安全向导)
    • 安全向导:
  • 修改配置文件(具体的看是否需要远程访问数据库)
  • 重启MySQL服务
  • 从MySQL-Client登陆MySQL(首次登陆建议以root用户身份登陆)

安装客户端和依赖环境

sudo apt install mysql-server #安装mysql服务器端
sudo apt install mysql-client #安装mysql客户端
sudo apt install libmysqlclient-dev #安装服务端/客户端依赖环境(可有可无,建议安装)

初始化MySQL(MySQL 5.7并未设置默认密码,需要初始化,即运行安全向导)

sudo mysql_secure_installation

安全向导:

1.(是否设置随机密码,Y/y随机密码, N/n自己输入密码)

VALIDATE PASSWORD PLUGIN can be used to test passwords...
Press y|Y for Yes, any other key for No: N (我的选项)
Please set the password for root here...
New password: (输入密码)
Re-enter new password: (重复输入)

2.(是否删除匿名用户,建议删除)

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) : Y (我的选项)

3.(是否禁止root账户远程登陆,建议禁止)

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)

4.(是否删除test数据库,建议删除)

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) : Y (我的选项)

5.(是否重新加载权限表,应该重新加载)

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)

修改配置文件(具体的看是否需要远程访问数据库)

sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf
/bind #查找bind-address,然后注释该行并保存

重启MySQL服务

sudo service mysql restart

从MySQL-Client登陆MySQL(首次登陆建议以root用户身份登陆)

mysql -u root -p

## 创建用来远程登陆的用户
create user 用户名(非root用户)
## 为新建立的用户赋予相应权限
grant all privileges on *.* to ‘username‘@‘%‘ identified by ‘password‘ with grant option; # grant 修改用户权限的关键字 # all(增、删、改、查、创建数据库和表等,除grant外的所有权限) # on 后面跟数据库名.表名(*代表所有) # to ‘username‘@‘ip‘(%代表所有IP均可访问该数据库) # identified by ‘password‘ # 关键字:privileges、with grant option
## 必须使用flush privileges的两种情况
1、改密码。

2、授权超用户。

flush privileges 命令本质上的作用是将当前user和privilige表中的用户信息/权限设置从mysql库(MySQL数据库的内置库)中提取到内存里

Ubuntu下安装MySQL(阿里云服务器)

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