Ubuntu18.04 安装MySQL
环境信息:
OS:Ubuntu18.04
MySQL: 5.7.25-0ubuntu0.18.04.2
1.安装MySQL
在 Ubuntu 18.04 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1sudo apt-get update#命令2sudo apt-get install mysql-server
2 .配置MySQL
2.1 安装配置
sudo mysql_secure_installation
配置项较多,如下所示:
#1VALIDATE PASSWORD PLUGIN can be used to test passwords...Press y|Y for Yes, any other key for No: N (我的选项)#2Please set the password for root here...New password: (输入密码)Re-enter new password: (重复输入)#3By default, a MySQL installation has an anonymous user,allowing anyone to log into MySQL without having to havea user account created for them...Remove anonymous users? (Press y|Y for Yes, any other key for No) : N (我的选项)#4Normally, root should only be allowed to connect from'localhost'. This ensures that someone cannot guess atthe root password from the network...Disallow root login remotely? (Press y|Y for Yes, any other key for No) : Y (我的选项)#5By default, MySQL comes with a database named 'test' thatanyone can access...Remove test database and access to it? (Press y|Y for Yes, any other key for No) : N (我的选项)#6Reloading the privilege tables will ensure that all changesmade 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
显示如下结果说明mysql服务是正常的:
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,那么需要改变/etc/mysql/f配置文件;
3.1 首先用根用户进入:
sudo mysql -uroot -p
默认的MySQL安装之后根用户是没有密码的,命令执行后会让你设置root的密码,进入root后才能进行其他设置
以root进入mysql后也可用命令给root设置密码:
GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY "123";
3.2 新建数据库和用户
用root用户新建数据和用作远程访问的用户
##1 创建数据库weixxCREATE DATABASE weixx;##2 创建用户chen(密码123) 并赋予其weixx数据库的所有权限GRANT ALL PRIVILEGES ON weixx.* TO chen@localhost IDENTIFIED BY "123";
3.3 进行远程访问或控制配置
##1 允许chen用户可以从任意机器上登入mysqlGRANT ALL PRIVILEGES ON weixx.* TO chen@"%" IDENTIFIED BY "123";
$sudo vim /etc/mysql/f##在头部添加如下配置,[mysqld] $sudo vim /etc/mysql/mysql.conf.d/f## 将 bind-address 改成如下所示:以支持在其他机器上连接数据库bind-address = 0.0.0.0
3.4 配置好了之后,就需要从起 mysql
$ service mysql restart
4.使用workbench连接数据库
安装workbench
输入命令:
sudo apt-get install mysql-workbench
安装完成后,搜索workbench,并打开它
打开workbench进行连接配置:
上述是在本机上连接的。
下面从其他机器连接:
附:Navicat12 for mysql的激活教程 /u013600314/article/details/80605981
基于阿里云Ubuntu安装和配置PostgreSQL远程连接:/LTAO427/article/details/108418389