概述
//备用, 最下面删除
Ubuntu18.04 安装MySQL
环境信息:
OS:Ubuntu18.04
MySQL: 5.7.22
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1
sudo apt-get update
#命令2
sudo apt-get install mysql-server
2.配置MySQL
2.1 安装配置
sudo mysql_secure_installation
1
配置项较多,如下所示:
#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)
部分图示:
2.2 检查mysql服务状态:
systemctl status mysql.service
1
显示如下结果说明mysql服务是正常的:
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: en
Active: active (running) since Sat 2018-06-23 11:09:03 CST; 6min ago
Main PID: 14078 (mysqld)
Tasks: 29 (limit: 4915)
CGroup: /system.slice/mysql.service
└─14078 /usr/sbin/mysqld --daemonize --pid-file=/run/mysqld/mysqld.pi
6月 23 11:09:02 weision systemd[1]: Starting MySQL Community Server...
6月 23 11:09:03 weision systemd[1]: Started MySQL Community Server.
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/my.cnf配置文件;
3.1 首先用根用户进入:
sudo mysql -u root -p
1
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 "123456";
1
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qcqc
CREATE DATABASE qcqc;
##2 创建用户wxx(密码654321) 并赋予其weixx数据库的所有权限
GRANT ALL PRIVILEGES ON qqqc.* TO sss@localhost IDENTIFIED BY "123456";
1
3.3 进行远程访问或控制配置
##1 允许wxx用户可以从任意机器上登入mysql
GRANT ALL PRIVILEGES ON qqqc.* TO sss@"%" IDENTIFIED BY "654321";
1
$sudo gedit /etc/mysql/my.cnf
##在最后添加如下配置,允许其他机器访问MySQL
>skip-networking => # skip-networking
到此位置,就配置好了。
4.使用workbench连接数据库
打开workbench进行连接配置:
配置完成后,在主界面选择weixx数据库进行连接:
---------------------
作者:Weison Wei
原文:https://blog.csdn.net/weixx3/article/details/80782479
输入root用户密码
3.登录mysql
mysql -u root -p
4.启动mysql服务
sudo start mysql
5.安装workbench
sudo apt-get install mysql-workbench
安装完成后找到workbench,进入:
---------------------
作者:lengconglin
原文:https://blog.csdn.net/lengconglin/article/details/77911353
删除mysql
sudo apt purge mysql-*
sudo rm -rf /etc/mysql/ /var/lib/mysql
sudo apt autoremove
sudo apt autoclean(如果提示指令有误,就把reclean改成clean)
最后
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