一、安装MySQL5.7
1.更换镜像源
sudo cp /etc/apt/sources.list /etc/apt/sources.list.old #备份原来的文件
sudo vim /etc/apt/sources.list #修改sources.list文件
配置文件内容如下所示：
# 清华镜像源
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
2.更新
sudo apt update # 更新镜像源
3.安装MySQL5.7
sudo apt install -y mysql-server-5.7
（需要输入两次mysql的root用户的密码
软件包设置
┌──────────────────────────┤ 正在设定 mysql-server-5.7 ├──────────────────────────┐
│ While not mandatory, it is highly recommended that you set a password for the │
│ MySQL administrative "root" user. │
│ │
│ If this field is left blank, the password will not be changed. │
│ │
│ New password for the MySQL "root" user: │
│ │
│ *********______________________________________________________________________ │
│ │
│ <确定> │
│ │
└─────────────────────────────────────────────────────────────────────────────────┘
软件包设置
┌────────┤ 正在设定 mysql-server-5.7 ├────────┐
│ │
│ │
│ Repeat password for the MySQL "root" user: │
│ │
│ *********__________________________________ │
│ │
│ <确定> │
│ │
└─────────────────────────────────────────────┘
4、安装完成，查看MySQL的版本
mysql -V # 查看mysql版本
5、连接MySQL（使用root和刚才设置的root的密码）
➜ ~ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.33-0ubuntu0.16.04.1 (Ubuntu)
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
二、配置远程连接
1、修改配置文件
sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf
找到 bind-address 修改值为 0.0.0.0
在这里插入图片描述
重启MySQL
sudo /etc/init.d/mysql restart
2、为用户授权远程连接服务
使用 root 用户登录 MySQL 数据库
mysql -u root -p
使用 MySQL 命令为 root 用户授权 MySQL 远程连接服务
grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option;
将配置写入 MySQL 授权表中
flush privileges;
然后即可连接远程连接
三、启动、停止服务
#启动
sudo service mysql start
#停止
sudo service mysql stop